They hacked a company called 'RSA Security' [1] and not the cryptography algorithm RSA [2]. While the former is still interesting, the latter would be big news indeed.
Since RSA Security is the company that supplies the tokens that are used to secure most banks and defense contractors, etc., and these tokens were in turn compromised via the hack, I would argue that this hack is still big news indeed.
To me the worst part was how they managed the incident. They should never have been hacked, but once it happened they should have been honest about the scope of impact.
[1] http://en.wikipedia.org/wiki/RSA_Security
[2] http://en.wikipedia.org/wiki/RSA