Most ERPs protect data in transit and trust the server with the rest. LetterSheets encrypts your team's most sensitive details in the browser — so our database never holds them readable.
Salaries, payslips, bank accounts, government IDs, birth dates, addresses, medical details and face data are encrypted in your browser. A stolen copy of our database shows nothing but ciphertext for any of them.
Key exchange and signatures use NIST post-quantum standards, so data captured today can't be decrypted by future quantum machines.
ML-KEM-768 · ML-DSA-65Each company gets a downloadable recovery key at setup — and there's no vendor master key, so there's no backdoor into your sealed data.
Encryption isn't a setting you switch on — it's how the platform works from the moment you create a company.
Spin up your workspace and download your recovery key — keep it safe, it's your way back in.
Your password unlocks your company's key right in your browser — and the unlocked key never leaves it.
Sensitive fields encrypt and decrypt automatically as you work — there's nothing to manage.
Bring your whole business onto one platform — with your people's data sealed from day one.