Step 1. Go to the PrivatBank AKCC website → “Online services” tab → “Revoke a certificate” → “Revoke a certificate using SmartID” (https://acsk.privatbank.ua/revoke). Step 2. Scan the QR code via the “Privat24 for business” mobile app, select a company and enter the SmartID password. Step 3. Select a key or keys to revoke and click the "Revoke" button. Step 4. Scan the QR code via the “Privat24 for business” mobile app, select a company and enter the SmartID password. Step 5. SmartID signature is revoked successfully.