Think of your digital life in separate compartments.
Just as ships use watertight compartments to prevent sinking, separating different parts of your online life helps contain damage if one account is compromised.
Avoid using one email for everything.
Create separate email addresses for different purposes, such as:
Personal communications
This prevents a breach in one area from exposing your entire digital identity.
Banking and financial accounts
Healthcare
Shopping
Social media
Work
Use unique passwords for every category.
Never reuse passwords across accounts. If one password is stolen, attackers won’t gain access to unrelated accounts.
Limit the “blast radius” of a cyberattack.
Compartmentalization is designed to contain incidents. A compromised shopping account, for example, shouldn’t provide a pathway to your banking or healthcare accounts.
Protect your most sensitive accounts first.
Financial accounts, primary email addresses, and identity-related services should have the strongest protections, including multi-factor authentication (MFA).
Good cyber hygiene still matters.
Compartmentalization complements—not replaces—security basics like strong passwords, MFA, regular software updates, and monitoring your accounts for suspicious activity.
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