The disclosed computer-implemented method for anonymizing user accounts may include (i) receiving an instruction to anonymize a user account to protect a user's personally identifiable information, (ii) accessing, by a security program, a settings portal for the user account in response to receiving the instruction to anonymize the user account, (iii) replacing, by the security program, original values within at least two fields within the settings portal for the user account with anonymized values to mask the user's personally identifiable information, and (iv) storing the anonymized values within a protected vault to enable the user to login to the user account. Various other methods, systems, and computer-readable media are also disclosed.