WSJ Exec: "Anonymous is just a marketing buzzword right? Let's just make sure the legal team writes it up so that anyone who reads the TOS understands we're doing the exact opposite here."
Do you seriously think they exploited the webserver to replace text, but didn't bother copying all the system logs and installing a backdoor and rootkit? You're right, they did it for the lulz. It's too bad that MI-6 only has access to documented, patched vulnerabilities and this website will be back to impenetrable by foreign intelligence services status in no time.
A much better suggestion is to not allow flash to be installed. There are critical security vulnerabilities in like the last 100 versions of flash. Having the "latest patched version" doesn't make you much safer when new 0-day flash exploits are constantly being discovered.
I have a genius IQ (146) and it was scored in three completely different (read quantifiable) areas: Language, Mathematics, and Science.