The velocity of light in vacuum, c, is approximately 3 × 10 8 m s −1, fast enough to make 7.5 round-the-world trips in a single second, and to move a distance of 300 mm in 1 ns. This ultrahigh speed ...

Cron persistence is a common Linux malware technique. Learn how it works, how to detect it, and how to remove malicious cron ...