The domino effect of reuse
Reusing one password across services can allow a breach at one provider to affect other accounts. Start with email, then create unique passwords for your other important accounts. Predictable changes, such as adding the service name to the end of one password, may not provide meaningful separation.
A manageable method
If you use a password manager, protect it with a strong, unique master password and learn the recovery process beforehand. Avoid shared notes or group messages for passwords. If a shared account is necessary, examine the service’s own access controls. A workable system includes knowing who has access, not just using complex characters.
A second layer
Review the multi-factor authentication options offered by each service. Do not respond to unexpected requests for verification codes or share codes with someone claiming to provide support. Before replacing a phone, check your recovery details. Planning how to regain access safely is part of protecting an account.
Curiosity continues with the next question.
