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Computers And Electronics questions and answers

2,095 answers, newest first (page 64).

Which phones cannot be traced?

No smartphone that stays on a cellular network can be completely untraceable. Devices like GrapheneOS‑powered Pixels or Librem 5 reduce tracking, but they still expose hardware IDs and baseband traffic.

What is security level 5?

Security level 5, or Evaluation Assurance Level 5 (EAL5), is a high-security certification requiring formal methods to mathematically prove that a system’s design and code are free of vulnerabilities. It is used in critical systems like military and financial infrastructure. Most commercial systems do not reach this level due to cost and complexity.