Software and Security
Browser site isolation separates more than the tabs you can see
Browser site isolation adds boundaries between website content. Understand why process counts do not map neatly to tabs and what this protection cannot do.
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Software and Security
App sandboxing limits access without making every app trustworthy
An app sandbox restricts what software can reach, while permissions and the information you provide still shape privacy risk.
Account Security
Passkey attestation answers a different question from signing in
WebAuthn attestation concerns an authenticator’s provenance during registration. Separate it from the proof used at sign-in and consider the privacy trade-off.
Home Networks
A failed DNS lookup can stay cached after the record is fixed
A newly created DNS record can still appear absent because a resolver cached an earlier negative answer. Learn what to check before changing it again.
Practical Computing
Clock correction can happen by a jump or a gradual adjustment
Clock synchronisation can correct time by stepping or slewing. Understand the difference and why timestamps may need context when troubleshooting.
Practical Computing
An ICC display profile describes colour behaviour rather than upgrading the screen
Understand what an ICC display profile contributes to colour management, then check the monitor, profile source, and application before changing screen settings.