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2. SHSH blob - Wikipedia

   en.wikipedia.org/wiki/SHSH_blob

   SHSH blobs are created by a hashing formula that has multiple keys, including the device type, the iOS version being signed, and the device's ECID. [5] [non-primary source needed] When Apple wishes to restrict users' ability to restore their devices to a particular iOS version, Apple can refuse to generate this hash during the restore attempt, and the restore will not be successful (or at ...

3. Security and privacy of iOS - Wikipedia

   en.wikipedia.org/wiki/Security_and_Privacy_of_iOS

   iOS devices can have a passcode that is used to unlock the device, make changes to system settings, and encrypt the device's contents. Until recently, these were typically four numerical digits long. However, since unlocking the devices with a fingerprint by using Touch ID has become more widespread, six-digit passcodes are now the default on ...

4. Greenpois0n - Wikipedia

   en.wikipedia.org/wiki/Greenpois0n

   Developers from Chronic Dev Team and iPhone Dev Team released greenpois0n Absinthe (known as just "Absinthe") in January 2012, a desktop-based tool (for OS X, Microsoft Windows, and Linux [30]) to jailbreak the iPhone 4S for the first time and the iPad 2 for the second time, on iOS 5.0.1 for both devices and also iOS 5.0 for iPhone 4S.

5. Worried about computer viruses? Here’s the extra layer of ...

   www.aol.com/lifestyle/antivirus-program-may-not...

   Like biological viruses, computer viruses also have a knack for spreading like wildfire. However, their modus operandi is to copy their codes copiously into other programs with one malicious goal ...

6. Downgrade attack - Wikipedia

   en.wikipedia.org/wiki/Downgrade_attack

   A downgrade attack, also called a bidding-down attack, [1] or version rollback attack, is a form of cryptographic attack on a computer system or communications protocol that makes it abandon a high-quality mode of operation (e.g. an encrypted connection) in favor of an older, lower-quality mode of operation (e.g. cleartext) that is typically provided for backward compatibility with older ...

7. Issues relating to iOS - Wikipedia

   en.wikipedia.org/wiki/Issues_relating_to_iOS

   The iOS mobile operating system developed by Apple has had a wide range of bugs and security issues discovered throughout its lifespan, including security exploits discovered in most versions of the operating system related to the practice of jailbreaking (to remove Apple's software restrictions), bypassing the user's lock screen (known as lock screen bypasses), issues relating to battery ...