Password security is like a door lock but often neglected
Many migrated member platforms store raw passwords in databases. Owners are usually unaware because early launches used unvetted scripts. This equals high investment with an easily picked lock and high risk.
Statistics show over 80% of breaches involve password leaks. Sites with member functions must treat this as basic defense; once trust is lost recovery is difficult.
This article starts from storage principles and explains hashing, salting, multi-factor verification and policy setting so owners can discuss must-do versus later items with their team.
Three storage levels compared
Password handling falls into three tiers:
| Method | Level | Description | Risk |
|---|---|---|---|
| Plaintext | Very high | Stored as-is | Full exposure on leak |
| Reversible encryption | Unsafe | Key allows recovery | Key leak restores all |
| Hash + salt | Safe | One-way plus random value | Leak prevents recovery |
Plaintext lets anyone read passwords and reuse across sites amplifies damage. Simple encryption fails if the key leaks. Hash plus salt is the accepted standard with low reversibility and table-attack resistance.
New systems should specify bcrypt or Argon2.
Algorithm selection rules
Not every hash suits password storage. Fast ones enable brute force.
| Algorithm | Suitability | Note |
|---|---|---|
| MD5 | Unsuitable | Too fast |
| SHA family | Unsuitable | Collision risk |
| bcrypt | Recommended | Adjustable cost |
| Argon2 | Best | Resists GPU and memory attacks |
bcrypt deliberately slows computation. Argon2 adds memory control. New projects prefer Argon2; existing bcrypt systems can stay unless outdated algorithms are present.
Multi-factor verification boost
Even with good storage, repeated passwords remain weak. Multi-factor adds possession or biometric checks.
Common options include SMS codes, authenticator apps, email and security keys. B2C systems may offer optional use while B2B and admin accounts require apps. Basic multi-factor blocks most automated attacks.
Updated password policy
Modern rules favor length over complexity. Minimum eight characters, allow manager paste, no forced rotation, ban weak lists and give real-time strength feedback.
Attack types and countermeasures
Brute force
Automated guessing. Counter with attempt limits, lockouts and CAPTCHA.
Dictionary attack
Known lists. Counter with bans and length checks.
Credential stuffing
Reused leaks. Counter with multi-factor and anomaly detection.
Rainbow table
Precomputed hashes. Counter with unique salts per password.
Social engineering
Human trickery. Counter with training and multi-factor.
Checklist
Storage: use bcrypt or Argon2, unique salts, least privilege. Transport: enforce HTTPS and POST. Login: attempt limits, CAPTCHA, multi-factor. Reset: time-bound links, single use, no account existence hints.
Future direction
Passwordless options such as passkeys are rising. Short term still requires secure storage plus multi-factor; medium term evaluate passkeys.
Conclusion
Password safety affects corporate reputation. Check database fields, enable authenticator for admins and test reset flows to cut most risks.
