Mighty Mouse working on Leopard working but security issues?

[erifneerg]

I was looking around for some sort of solution to changing my mouse cursor in Leopard. After sometime, I found forum post on insane mac talking about a solution to getting Mighty Mouse to work on Leopard.
It's said after applying this 'update?' mighty mouse should work.

$ cd /usr/lib
$ sudo cp libcrypto.0.9.dylib libcrypto.0.9.dylib.old
$ sudo cp libssl.0.9.dylib libssl.0.9.dylib.old
$ sudo ln -sf libcrypto.0.9.7.dylib libcrypto.0.9.dylib
$ sudo ln -sf libssl.0.9.7.dylib libssl.0.9.dylib

I tried and it's fine so far. I'm just worried that i might have opened some secuirty hole or something. it's clear that it is modifying something to do SSL and Crypto.