# Passwords: modernization needs a migration plan

https://thiago.limaesilvatecnologia.com.br/en/artigos/password-migration/

Published: 2026-09-12

Changing the standard does not update every account.

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Reading-path month: June 2026

Collection published on September 12, 2026. Months organize the reading path; they are not earlier publication dates.

A short architecture article. The technical reference supports the topic; hypothetical scenarios and assessment proposals are editorial analysis, not accounts of personal implementations.

## The architecture decision

Improved password storage may initially affect only new accounts. Explain how existing accounts leave the old format without requiring access to original passwords.

## Practical application

Editorial proposal: plan migration states compatible with the chosen mechanism. In a hypothetical product, distinguish active users from dormant accounts. Check current library and parameter guidance before implementation.

## How to verify

Test temporary format coexistence and account recovery. Measure progress without exposing credentials. Retiring the old format should account for remaining users and support capacity.

## Sources

- [OWASP — Password Storage Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html). Accessed: 2026-09-12.

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