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So-called two-factor authentication is generally considered secure. We provide an overview of the most important methods: via SMS, via hardware -- especially FIDO2-compatible USB sticks such as the YubiKey -- or via TOTP. The latter are six-digit PINs that are generated by a special app, the so-called one-time passwords (Time Based One Time Password). Google announced a change to the Authenticator app a few days ago, which we will briefly classify (as not yet good enough). It has long been known how the SMS process can be cracked -- but recently the TOTP logins can also be intercepted, using a complex phishing process, which we will explain. The best way to counteract this is to be careful when clicking on links in dubious emails, although these are increasingly looking less dubious. FIDO2 keys provide even better protection, as they encode the URL and therefore do not provide a password if the URL is incorrect. In the studio today: Pina Merkert (AI expert), Lutz-Labs (SSDs) and Niklas Dierking (2-factor login), moderated by Jörg Wirtgen. We're talking about SSDs with SATA connections for retrofitting old PCs and notebooks -- available on YouTube from Friday. Then we'll explain how 2-factor authentication can be hacked and why it's still useful -- available on YouTube from Saturday. Finally, we'll discuss how artificial intelligence could affect the media and some jobs -- available on YouTube from Thursday. **SPONSOR NOTE** AVM is Europe's leading manufacturer of products for the digital home. With around 880 employees and the best-known brand for WLAN routers, AVM brings millions of people onto the Internet. Exciting jobs at jobs.avm.de. **END OF SPONSOR NOTE**