- Two-step verification for everyoneA cloud password in Telegram, a PIN in WhatsApp. It takes a minute per person.
- Company chats have company ownersThe group owner is a company account, not the person who happened to create it.
- Review active sessions monthlyUnknown desktops and browsers are closed. It is the most common hidden access.
- Decide what never goes in a chatPasswords, full client data, payment details. Name it explicitly.
- Use auto-delete where history is a liabilityOperational chats rarely need a two-year archive.
- Separate personal and work accountsOr at least separate profiles. It makes offboarding possible.
- Know what to do when a phone is lostWho is called, which sessions are closed, who warns the clients.
- Write it on one pageRules that are not written down are opinions.
None of this needs new software. It needs someone to decide, write it down and check it once a month.