The greatest ocean depth measured is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km 2 /yr.
BitLocker uses an AES encryption algorithm with a 128-bit key or 256-bit key to encrypt disk volumes. It protects the data when a hard drive is stolen and is being used on another computer or when someone has physical access to the drive. To access the drive in an offline mode, BitLocker requires a recovery key. BitLocker is generally aimed toward individual users who may fall prey to computer/laptop theft.
The 14-character Recovery Key is generated during the two-step signup process and is meant as a backup. If you forget your password or lose access to all trusted devices and your phone number (but not both), the Recovery Key was the only way to restore your Apple ID account. The Recovery Key was a good feature, but it's so easy to lose, and the setting to get a new one is pretty buried.