Two factor authentication guards the door. It does not insure the house. Offices regularly discover this difference on the worst possible day - so here is what 2FA cannot do, and the backup habit that covers the rest.
After setting up 2FA, a comfortable feeling arrives: "our Tally is secure now." It is - against one specific danger, the wrong person logging in. But most Tally data disasters were never login problems. A hard disk dies with no warning, a well-meaning user deletes the wrong vouchers, ransomware encrypts the data folder of a PC whose user logged in quite legitimately. 2FA is silent in all of these. This page is the other half of protecting your books.
In TallyPrime, backup lives under the Company menu (Alt+K) → Backup: pick the companies, pick the destination, done. The technology is ten percent of the job; the routine is the rest. Daily for active books - at close of work, by a named person, not "whoever remembers". Add an extra backup before anything big: a Tally update, a year-end split, a bulk import, or a data repair. Those are the moments you most want a way back.
If the only copy of your backup sits in a folder on the same computer as the live data, one disk failure, one theft or one ransomware run takes both. Keep at least one copy somewhere else:
Two copies, two places, one of them off the premises - that is the minimum shape of safety.
An untested backup is a rumour. Once in a while - quarterly is fine - Restore a recent backup into a test company and open it: check the latest voucher date and a balance you recognise. Restores fail in quiet ways (incomplete copies, wrong company, a backup taken while data was half-written) and the only time you want to discover that is during a test, not during a crisis.
The login layer is not useless here - it narrows the human risks. With separate users and security levels, fewer people hold the rights to delete or alter old vouchers at all. The edit log then shows who changed what, which turns "the data is wrong" into a findable event. And note a Tally rule working in your favour: remote users cannot take Backup or Restore - so backup data cannot walk out through a remote login either.
That same rule has a consequence worth planning around: because remote logins cannot run Backup or Restore, the backup routine belongs to someone physically or administratively on the office side. If your accountant works fully remotely, the daily backup is still your office's job - schedule it, name its owner, and check it like you check attendance. On Tally's own cloud access platform (TallyPrime powered by AWS), automatic encrypted backups are part of the service; on any self-hosted setup, the responsibility is entirely yours.
Start with the door: the video sets up two step verification for Tally access. Then build the backup routine from this page on top of it.
▶️ Watch Full VideoDaily for books that change daily, at the end of the work day. Add an extra backup before a Tally update, a year-end split or any bulk change. The test is simple: how many days of re-typing entries could you honestly tolerate? Back up more often than that.
On TallyPrime powered by AWS, Tally describes automatic backups with encryption as part of the platform, retrievable through its Self Service Portal. On a self-hosted or office server setup there is no such safety net until you build the routine yourself.
As the only copy on the same PC and same disk as the live company data - a disk failure, theft or ransomware then destroys the data and its backup together. Keep at least one copy on a separate device, and ideally one copy off the premises.