20 years ago Daniel Bleichenbacher discovered an attack against RSA as it was used in SSL and the padding mode PKCS #1 v1.5. Obviously such an old attack doesn't work any more today, because everyone has fixed it. Okay... That was a joke. It still works. With some minor modifications we were able to discover the ROBOT attack (Return Of Bleichenbachers Oracle Threat). It affected nine different vendors and we were able to sign a message with the private key from facebook.com. More info at https://robotattack.org/ and in the full paper at https://eprint.iacr.org/2017/1189