Practical Computing
A recovery key deserves a different home from the encrypted laptop
Find out where your BitLocker recovery key is stored before a recovery screen appears, and distinguish the key itself from the identifying number.
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Digital Housekeeping
Why deleting a file is different on an SSD
Deleting a file, SSD garbage collection and sanitising a drive are different processes. Understand the distinction before selling or retiring a computer.
Everyday Digital Security
DNSSEC checks DNS authenticity without hiding the query
DNSSEC checks the authenticity and integrity of signed DNS data. Learn why that protection differs from encrypting DNS traffic or securing a website connection.
Practical Computing
An SD card’s lock tab asks the reader to block writes
Understand what an SD card’s lock slider can do, why the reader matters, and how it differs from file permissions, encryption and a forensic write blocker.
Account Security
A spare security key has to be enrolled before it can rescue a login
Buying a spare security key is not enough. Register and test it with each supported account, then store it separately from your everyday key.
Account Security
Encrypted DNS protects one part of a browser request, not every detail
DNS over HTTPS encrypts the lookup between a browser and its DNS resolver. Understand what that protects and what it does not hide about browsing.