All the time is a bit of an exaggeration. Some algorithms are broken very fast, others slowly accumulate partial attacks until people don't trust them anymore. Those last ones don't normally get completely broken¹. I think the only exceptions were the shorter key lengths of RSA².

1 - But you will find many examples of algorithms with less than the modern strength parameters that were broken by the mix of faster computers and partial attacks.

2 - But by the time those were abandoned people were mostly using even shorter keys that wouldn't suffice by today's standards even without any known attack.