Yes, but the exploit was likely not the Linux/Apache combo, but something else like say... Insecure PHP scripts.
Not only do we identify hacked sites, but we have an incident response team that works with hosting companies, ISPs, domain registrars, and peering points to prevent consumers from reaching these sites. Often the owner of the computer will provide us forensics for further investigation. You'd be surprised how many of the exploits are
not insecure PHP scripts, but simple root kit attacks.
Unfortunately, this site has too many Microsoft haters to discuss web security without bias. I just thought I would provide real evidence that might allow them to make informed statements.
