Using different passwords
Using different passwords ensures that if one of your passwords is leaked, not all your accounts can be accessed.
Good password hygiene is key for protecting accounts. If important accounts are protected with the same password, a leaked password may be able to access them all. Using a unique password reduces this risk.
Behaviours in SebDB are ranked by their impact on risk. Tier 1 behaviours have the biggest impact, Tier 4 behaviours the least.
https://www.cs.auckland.ac.nz/~cthombor/Pubs/IdMgmt/gno09.pdf https://www.ncsc.gov.uk/collection/top-tips-for-staying-secure-online/use-a-strong-and-separate-password-for-email https://www.ncsc.gov.uk/blog-post/living-password-re-use https://www.usenix.org/system/files/conference/soups2016/soups2016-paper-wash.pdf