extra security, and not worry about if you get a new phone or mobile number, which doesn't risk problems. In addition, having it set up is required for. Logging into the bank or the Grand Exchange from the RuneScape Companion app still requires the 4-digit PIN. This algorithm can be used both on supported mobile devices and in desktop implementations. Free and available to all RuneScape players, in the main game and on Old School, the RuneScape Authenticator is the new way to protect your account, giving it an additional layer of protection against unauthorised access. See here for how to help out! Players who choose to stop using the authenticator as the bank PIN revert back to the last 4-digit PIN used. Setting up, to set up the, runeScape, authenticator, a player must visit the. Get protected in just two minutes! Trivia On release, although the Authenticator was stated to trust the computer for 30 days if selected, it only did so for 14 days. Alternative to using mobile phone for authenticator codes edit edit source Players who cannot scan the setup QR code, or just want an alternative may use Authy. The, runeScape, authenticator is an additional layer of protection players can utilise on their accounts. Old School RuneScape and, runeScape 3, unlike the JAG did previously. Jagex generates a random 80-bit secret key unique to each user and presents it as a 2-dimensional barcode and as a 16-character, base32 string.