Never share passwords or passphrases
Precautions while using Computer and Laptops
Never share passwords or passphrases
Pick strong passwords and passphrases, and keep them private. Never share your passwords or passphrases, even with friends, family, or computer support personnel.
Frequently back up important documents and files
File permissions
Lid
Lock your computer when stepping away
Cooling
Avoid lap burn
Document holders
Other laptop security hints
Pprotect my laptop while traveling
Taking a Portable Computer Through Security
Solutions
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