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Encryption: Last Week Tonight with John Oliver (HBO)

Channel: LastWeekTonight & Total View: 9327824

Add Date: March 13, 2016, 11:30 pm & Duration: 00:18:01

Likes: 117668 | Dislike: 2501


last week tonight, last week tonight with john oliver, encryption, apple, san bernardino iphone, privacy, security, hackers, fbi, john oliver, hbo

Strong encryption poses problems for law enforcement, is weakening it worth the risks it presents? It’s…complicated.

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Encryption as Fast As PossibleEncryption as Fast As Possible
00:05:24February 22, 2015, 5:11 pm
Encryption as Fast As Possible

Channel: Techquickie & Total View: 351685

Add Date: February 22, 2015, 5:11 pm & Duration: 00:05:24

Likes: 10100 | Dislike: 151


encryption, data, private, privacy, internet, transfer, email, send, receive, computer, private key, public key, enigma

How does data travel around the internet without becoming publicly visible? Encryption! But what is encryption?...

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Encryption Part I: Introduction to Encryption 1

Channel: Shane Killian & Total View: 131687

Add Date: July 1, 2014, 2:30 pm & Duration: 00:12:16

Likes: 1178 | Dislike: 36


Encryption (Literature Subject), security, NSA, hacking

The first part of a new series on encryption: what it is, how it works, and how you can protect yourself.

What is Encryption and How Does it Work? | Mashable Explains

Channel: Mashable & Total View: 70687

Add Date: October 15, 2015, 5:00 am & Duration: 00:03:01

Likes: 545 | Dislike: 114


mashable, video, Cryptography (Software Genre), Encryption (Literature Subject)

Encryption & decryption technology protects your e-mails, banking transactions, and even those questionable Etsy purchases. So how does it work, exactly?

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End to End Encryption (E2EE) - ComputerphileEnd to End Encryption (E2EE) - Computerphile
00:08:12March 30, 2017, 10:21 am
End to End Encryption (E2EE) - Computerphile

Channel: Computerphile & Total View: 185763

Add Date: March 30, 2017, 10:21 am & Duration: 00:08:12

Likes: 5479 | Dislike: 71


computers, computerphile, computer, science, University of Nottingham, Computer Science, Dr Mike Pound, Encryption, E2EE, End-to-End Encryption, WhatsApp, iMessage

End to end encryption, government ministers are again talking about stopping it. What is it and why might that be a bad idea? Dr Mike Pound explains.


This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham:

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What is Encryption? Public Key Encryption? Explained in Detail

Channel: Technical Guruji & Total View: 104483

Add Date: April 7, 2016, 2:08 am & Duration: 00:06:25

Likes: 3255 | Dislike: 169


technical guruji, technicalguruji, encryption, what is encryption, encryption in hindi, public key encryption, how encryption works, encryption explained, public key encryption explained, how, works, working, principle, hindi, urdu, whatsapp encryption, email encryption, message encryption, how to encrypt, how to decrypt

Namaskaar Dosto, is video mein maine aapko encryption ke baare mein bataya hai, aap sabhi ne computer aur internet use karte time Encryption aur decryption ke baare mein jarur suna hoga, usme aapko SSL encrytpion TSL Encryption, Public Key encryption, private key encryption wagereh ke baare mein bhi suna hoga, aur abhi recently whatsapp ne bhi end to end encryption launch kiya hai, toh aise mein hamare man mein bahut se sawaal hai ki aakhir yeh encryption hota kya hai? Encryption hum hamari email pe bhi use karte hai, aur hum online banking karte time bhi encryption ka use karte hai. Mujhe umeed hai ki yeh video dekhne ke baad aap encryption aur decryption ke baare mein sab kuch jaan jayenge, aur saath hi saath public key encryption ke baare mein bhi samajh jayenge. aur aap aaraam se whatsapp ke encryption feature ko bhi use kar payenge.

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Encryption and HUGE numbers - NumberphileEncryption and HUGE numbers - Numberphile
00:09:22December 9, 2012, 3:58 am
Encryption and HUGE numbers - Numberphile

Channel: Numberphile & Total View: 932883

Add Date: December 9, 2012, 3:58 am & Duration: 00:09:22

Likes: 15671 | Dislike: 205


encryption, RSA, code, 1024 bit, 2048 bit

Banks, Facebook, Twitter and Google use epic numbers - based on prime factors - to keep our Internet secrets. This is RSA public-key encryption.
More links & stuff in full description below ↓↓↓

Gold Vault:

This video features Dr James Grime ( Message from James: "Thanks to Dr Chris Hughes of the University of York who showed me how to find the RSA public key from my browser, and showed me how awesome they look when you print them out."

Regarding the keys used for encryption:
x, y prime
Encode key E shares no factors with (x-1)(y-1)
Decode key is D with E*D - 1 a multiple of (x-1)(y-1)

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Cryptography: The Science of Making and Breaking Codes

Channel: SciShow & Total View: 710730

Add Date: August 6, 2015, 12:02 pm & Duration: 00:08:21

Likes: 20328 | Dislike: 274


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There are lots of different ways to encrypt a message, from early, simple ciphers to the famous Enigma machine. But it’s tough to make a code truly unbreakable.

Hosted by: Michael Aranda
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Public Key Cryptography - ComputerphilePublic Key Cryptography - Computerphile
00:06:20July 22, 2014, 7:59 am
Public Key Cryptography - Computerphile

Channel: Computerphile & Total View: 351308

Add Date: July 22, 2014, 7:59 am & Duration: 00:06:20

Likes: 8025 | Dislike: 100


computers, computerphile, Public-key Cryptography, Cryptography (Software Genre), computer, computer science, secrets, university of nottingham

Spies used to meet in the park to exchange code words, now things have moved on - Robert Miles explains the principle of Public/Private Key Cryptography

note1: Yes, it should have been 'Obi Wan' not 'Obi One' :)
note2: The string of 'garbage' text in the two examples should have been different to illustrate more clearly that there are two different systems in use.

This video was filmed and edited by Sean Riley.

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Symmetric Key and Public Key EncryptionSymmetric Key and Public Key Encryption
00:06:45June 18, 2013, 5:09 am
Symmetric Key and Public Key Encryption

Channel: itfreetraining & Total View: 343173

Add Date: June 18, 2013, 5:09 am & Duration: 00:06:45

Likes: 1355 | Dislike: 132


Encryption, Symmetric key, PKI, ITFreeTraining, Windows Server (Operating System), Information Technology (Industry), Security (Quotation Subject)

Modern day encryption is performed in two different ways. Check out or for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption.

Download the PDF handout

Encryption Types
Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption.

Symmetric Key
Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be...

The RSA Encryption Algorithm (1 of 2: Computing an Example)

Channel: Eddie Woo & Total View: 119189

Add Date: November 4, 2014, 12:47 pm & Duration: 00:08:40

Likes: 1056 | Dislike: 42


math, maths, mathematics, Algorithm (Literature Subject), Encryption (Literature Subject), RSA (Literature Subject)

The RSA Encryption Algorithm (1 of 2: Computing an Example)

Why The Government Shouldn't Break WhatsAppWhy The Government Shouldn't Break WhatsApp
00:11:11July 3, 2017, 8:00 am
Why The Government Shouldn't Break WhatsApp

Channel: Tom Scott & Total View: 816133

Add Date: July 3, 2017, 8:00 am & Duration: 00:11:11

Likes: 46247 | Dislike: 561


tom scott, tomscott, the basics, encryption, whatsapp, imessage, public key, private key, encryption backdoor, backdoor, end-to-end encryption, investigatory powers act, computer science

Encryption backdoors - breaking WhatsApp and iMessage's security to let the government stop Bad Things - sounds like a reasonable idea. Here's why it isn't.

A transcript of this video's available here:


Filmed at the Cambridge Centre for Computing History:

Camera by Tomek:

Thanks to everyone who helped proofread my script!


WhatsApp's privacy protections questioned after terror attack:

WhatsApp must be accessible to authorities, says Amber Rudd:

UK government renews calls for WhatsApp backdoor after London attack:

Investigatory Powers Act:

India is 'ready to use' Blackberry message intercept system:...

The Internet: Encryption & Public KeysThe Internet: Encryption & Public Keys
00:06:40August 21, 2015, 4:45 pm
The Internet: Encryption & Public Keys

Channel: & Total View: 135163

Add Date: August 21, 2015, 4:45 pm & Duration: 00:06:40

Likes: 1174 | Dislike: 14

Tags:, computer science, code, Hour of Code, encryption, public keys, private keys, security, https, programming, web, online, data, breach, secure, decrypt, cryptography

Mia Epner, who works on security for a US national intelligence agency, explains how cryptography allows for the secure transfer of data online. This educational video explains 256 bit encryption, public and private keys, SSL & TLS and HTTPS.

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Lecture 5: Data Encryption Standard (DES): Encryption by Christof Paar

Channel: Introduction to Cryptography by Christof Paar & Total View: 107063

Add Date: January 30, 2014, 2:55 am & Duration: 01:33:37

Likes: 683 | Dislike: 15


Data Encryption Standard, DES, Paar, Cryptography, Lecture

For slides, a problem set and more on learning cryptography, visit

Will Quantum Computers break encryption?Will Quantum Computers break encryption?
00:15:45April 5, 2017, 6:01 pm
Will Quantum Computers break encryption?

Channel: Frame of Essence & Total View: 286573

Add Date: April 5, 2017, 6:01 pm & Duration: 00:15:45

Likes: 10229 | Dislike: 210

How do you secure messages over the internet? How do quantum computers break it? How do you fix it? Why don't you watch the video to find out? Why does this description have so many questions? Why are you still reading? What is the meaning of life?


You don't actually need a quantum computer to do quantum-safe encryption. As briefly mentioned at 7:04 , there are encryption schemes that can be run on regular computers that can't be broken by quantum computers.


[2:18] Technically, you can use any key to encrypt or decrypt whatever you want. But there's a specific way to use them that's useful, which is what's shown in the video.
[5:36] In RSA, depending on exactly what you mean by "private key", neither key is actually derivable from the other. When they are created, they are generated together from a common base (not just the public key from the private key). But typically, the file that stores the "private key" actually contains a bit more information than just the private key. For example, in PKCS #1 RSA private key format (...

How secure is 256 bit security?How secure is 256 bit security?
00:05:06July 8, 2017, 7:19 am
How secure is 256 bit security?

Channel: 3Blue1Brown & Total View: 573070

Add Date: July 8, 2017, 7:19 am & Duration: 00:05:06

Likes: 20802 | Dislike: 212


math, 256, security, computer science, 3b1b, three blue one brown, 3 blue 1 brown, mathematics

Supplement to the cryptocurrency video: How hard is it to find a 256-bit hash just by guessing and checking? What kind of computer would that take?

Cryptocurrency video:

Thread for Q&A questions:

Several people have commented about how 2^256 would be the maximum number of attempts, not the average. This depends on the thing being attempted. If it's guessing a private key, you are correct, but for something like guessing which input to a hash function gives a desired output (as in bitcoin mining, for example), which is the kind of thing I had in mind here, 2^256 would indeed be the average number of attempts needed, at least for a true cryptographic hash function. Think of rolling a die until you get a 6, how many rolls do you meed to make, on average?


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How Encryption Works - and How It Can Be BypassedHow Encryption Works - and How It Can Be Bypassed
00:02:49March 4, 2016, 11:37 am
How Encryption Works - and How It Can Be Bypassed

Channel: Wall Street Journal & Total View: 34740

Add Date: March 4, 2016, 11:37 am & Duration: 00:02:49

Likes: 438 | Dislike: 15


arielle ray, ENCRYPTION, APPLE, FBI, SAN BERNADINO, PHONE, PRIVACY, NATIONAL SECURITY, HACKING, MESSAGING, SCIENCE, Apple Inc., Personal Technology, Privacy Issues, Information Security, United States, North America

The debate between privacy and national security has never been more heated, with Apple and other tech firms going up against the government. So how are text messages encrypted, and what are the controversial "backdoors" that could allow access to them?

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How does encryption work? - Gary explainsHow does encryption work? - Gary explains
00:20:30September 13, 2016, 1:57 pm
How does encryption work? - Gary explains

Channel: Android Authority & Total View: 44248

Add Date: September 13, 2016, 1:57 pm & Duration: 00:20:30

Likes: 2203 | Dislike: 37


AndroidAuthority, Android, Encryption

Read more:

You probably use some form of encryption almost every day, and you probably don't even think about it. But what is it and how does it work?

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How Does Individual File Encryption Work?How Does Individual File Encryption Work?
00:05:37April 30, 2017, 1:00 pm
How Does Individual File Encryption Work?

Channel: Techquickie & Total View: 163762

Add Date: April 30, 2017, 1:00 pm & Duration: 00:05:37

Likes: 6422 | Dislike: 79


encryption, filesystem-based, file, cryptography, ntfs, windows, encrypting file system, efs, password, key, public key, private key, bitlocker, whole disk encryption, whole drive encryption, protect, data, kingston, datatraveler, security, privacy, computer, hardware, software, truecrypt, veracrypt

Check out Kingston's selection of encrypted USB drives here:

Ever wanted to encrypt and secure individual files without having to encrypt your entire hard drive or SSD? Here's how to do it, along with an explanation on how individual file encryption works.

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Public Key Cryptography: RSA Encryption Algorithm

Channel: Art of the Problem & Total View: 424735

Add Date: July 30, 2012, 3:01 pm & Duration: 00:16:31

Likes: 6116 | Dislike: 78


rsa, rsa encryption, rsa public key encryption, rsa algorithm, euler's theorem, euler's phi function, time complexity, cryptography

RSA Public Key Encryption Algorithm (cryptography). How & why it works. Introduces Euler's Theorem, Euler's Phi function, prime factorization, modular exponentiation & time complexity.

Link to factoring graph:

Cryptography basics: What is Encryption and Decryption

Channel: Skill Gurukul & Total View: 78281

Add Date: April 28, 2014, 7:29 am & Duration: 00:06:45

Likes: 845 | Dislike: 23


Engineering Mentor, Cryptography, Network Security, Encryption and Decryption, Cryptography basics, what is cryptography, what is encryption, Encryption, Decryption, basics of cryptography, what is decryption, Cryptography and Network Security

Get Full Course:
Networks #3: This tutorial introduces the Cryptography basics. It also explains what is Encryption and Decryption.

a) Cryptography basics (00:21):
how do we provide this security during transmission? Well, One way of ensuring security can be use of CRYPTOGRAPHY!
Cryptography is a field of network security
which deals with hiding "real" infromation
when it is under transmission between the two parties.
Usually, the real information is transformed
or hidden into another message and transmitted over the network.
This transformed message in itself will make no sense
even if any hacker gets hold of this information.
When it reaches the destination,
the receipent will know a method to de-transform
the garbage message into the original information
which the sender had sent.method of transforming message at sender's side
and de transforming at reciever's side forms the basic model of Cryptography.

b) Encryption and Decryption (3:57):
First, the information to be transmitted, called as plain text(or message)
is fed to an Encryption system.

How Does Full Disk Encryption Work?How Does Full Disk Encryption Work?
00:04:56August 5, 2016, 7:00 pm
How Does Full Disk Encryption Work?

Channel: Techquickie & Total View: 209556

Add Date: August 5, 2016, 7:00 pm & Duration: 00:04:56

Likes: 8132 | Dislike: 84


tpm, trusted platform module, full disk encryption, whole drive encryption, bitlocker, eps, encrypting file system, hardware level encryption, hard disk, ssd, security, algorithm

How does full-disk encryption keep your data safe, and what are its limitations?

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22. Cryptography: Encryption22. Cryptography: Encryption
01:24:15March 4, 2016, 2:12 pm
22. Cryptography: Encryption

Channel: MIT OpenCourseWare & Total View: 11350

Add Date: March 4, 2016, 2:12 pm & Duration: 01:24:15

Likes: 72 | Dislike: 5


encryption, symmetric key encryption, key exchange, asymmetric key encryption, RSA, np-complete, graph coloring, knapsack problem

MIT 6.046J Design and Analysis of Algorithms, Spring 2015
View the complete course:
Instructor: Srinivas Devadas

In this lecture, Professor Devadas continues with cryptography, introducing encryption methods.

License: Creative Commons BY-NC-SA
More information at
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Asymmetric encryption - Simply explainedAsymmetric encryption - Simply explained
00:04:40October 30, 2017, 1:00 am
Asymmetric encryption - Simply explained

Channel: Simply Explained - Savjee & Total View: 33280

Add Date: October 30, 2017, 1:00 am & Duration: 00:04:40

Likes: 1309 | Dislike: 14


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How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English!

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Make Your Own Encryption ProgramMake Your Own Encryption Program
00:03:51December 9, 2011, 8:18 pm
Make Your Own Encryption Program

Channel: Tinkernut & Total View: 87214

Add Date: December 9, 2011, 8:18 pm & Duration: 00:03:51

Likes: 1237 | Dislike: 42


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***NEW PROJECT*** Mini Lunchbox Arcade - --~--
This video lays out the steps for creating a very simple encryption and decryption program using free tools. The programming language we will be using is VB Script. See if you can decrypt this text:


You can find all the code for this program as well as an alternative for Apple computers at the project page:

What is Encryption and Decryption ? | Concept Explained (in Hindi)

Channel: Technical Sagar & Total View: 57402

Add Date: September 8, 2016, 4:59 am & Duration: 00:04:56

Likes: 1156 | Dislike: 59


DECRYPTION, ENCRYPTION, what is encryption, what is decryption, how to encrypt data in hindi, how to decrypt strings, data, data encryption in android, strings encryption, best encryption, url encryption, md5 encryption

In this video we will discuss about encryption and decryption. How these things works and why we need these. Watch the full video to know more about this topic. Like the video and please share with your friends.

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How to encrypt your Android deviceHow to encrypt your Android device
00:08:22December 30, 2013, 4:30 am
How to encrypt your Android device

Channel: Android Authority & Total View: 294675

Add Date: December 30, 2013, 4:30 am & Duration: 00:08:22

Likes: 2474 | Dislike: 111


encryption, data encryption, phone security, security, data security, Android, Android encryption, data theft

Your Android device is a pocket-size container of important information that you don't want to fall into the wrong hands. Imagine your emails, SMS messages, contacts, credit card numbers, files, photos, etc. being exposed to total strangers. No one wants to be in that vulnerable scenario. That's why you lock down your Android device with a combination of protective security measures, one of which is encryption, a pretty important one.

In this guide, learn more about what encryption is, how it works, and how to encrypt your Android device.

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Explained! What is Encrypting!Explained! What is Encrypting!
00:07:51March 13, 2016, 5:00 pm
Explained! What is Encrypting!

Channel: JackkTutorials & Total View: 15598

Add Date: March 13, 2016, 5:00 pm & Duration: 00:07:51

Likes: 279 | Dislike: 15


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The RSA Encryption Algorithm (1 of 2: Computing an Example)
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Why the NSA is breaking our encryption -- and why we should care | Matthew Green | TEDxMidAtlantic

Channel: TEDx Talks & Total View: 123596

Add Date: October 20, 2014, 8:27 am & Duration: 00:09:33

Likes: 1229 | Dislike: 35


Law, Politics, United States, International Affairs, Global Issues, Social Justice, Data Science, ted, English, tedx talks, tedx talk, ted x, tedx, ted talks, Public Policy, TEDxTalks, ted talk

This talk was given at a local TEDx event, produced independently of the TED Conferences. Encryption dates back to the Founding Fathers and the Bill of Rights. Now, the United States National Security Agency is breaking and undermining core encryption technologies that power the Internet, saying it's being done for our own protection from terrorists. But are we sacrificing our freedoms for fear?

Matthew Green is an Assistant Research Professor of Computer Science at the Johns Hopkins University. His research focuses on computer security and cryptography, and particularly the way that cryptography can be used to promote individual privacy. His work includes techniques to securely access medical databases, enhance the anonymity of Bitcoin, and to analyze deployed security systems. Prior to joining the Johns Hopkins faculty he served as a Senior Technical Staff Member at AT&T Laboratories.

About TEDx, x = independently organized event In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x =...

Python Encryption Tutorial with PyCryptoPython Encryption Tutorial with PyCrypto
00:21:05May 24, 2013, 11:05 am
Python Encryption Tutorial with PyCrypto

Channel: sentdex & Total View: 61923

Add Date: May 24, 2013, 11:05 am & Duration: 00:21:05

Likes: 283 | Dislike: 10


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How to use python to encrypt sensitive information, and later decrypt it, using PyCrypto!

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Why Encryption MattersWhy Encryption Matters
00:01:55February 17, 2016, 2:04 pm
Why Encryption Matters

Channel: Austin Evans & Total View: 331308

Add Date: February 17, 2016, 2:04 pm & Duration: 00:01:55

Likes: 11144 | Dislike: 164


encryption, apple, iphone, phone, unlock phone, passcode, android, pin, password, austin evans

How does data on your phone stay safe?
Apple's Open Letter on Encryption:

While the idea of being able to decrypt and unlock phones and laptops sounds like a good idea is adding a back door in encryption a good idea?

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Should You Encrypt Your Computer Hard Drive?Should You Encrypt Your Computer Hard Drive?
00:10:16January 26, 2017, 9:35 am
Should You Encrypt Your Computer Hard Drive?

Channel: ThioJoe & Total View: 57719

Add Date: January 26, 2017, 9:35 am & Duration: 00:10:16

Likes: 2156 | Dislike: 76


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Encrypting your hard drive ain't so tough.
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Most people don't even think to encrypt their hard drive, or have no idea how. It's actually not that difficult, and Windows has a feature built right into it called Bitlocker that will let you encrypt your drive, as long as you have at least the Pro version of Windows. However, there is other free software such as Veracrypt that will do full disk encryption, but it takes a bit of work to set up. You can also get a self-encrypting drive that does hardware encryption, and will not take up resources in your computer.

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SpeedWealthy is a search engine focus on popular videos sharing websites like Youtube to find the best results for our visitors, SpeedWealthy is not hosting images or videos on our servers and the videos on SpeedWealthy is not owned by us and we don't take responsibility for any video on our website.

SpeedWealthy is focused on Bitcoin and How to make money from home keywords and we try our best to filter and make a better website for our visitors. If you see a video who promote a scam network please let us know via a comment to check it out. Thank you for join