The NSA Raven

Once upon a database query, while I pondered weak security,
And many avenues of access via backdoor,
While I nodded, nearly napping, suddenly there came a wiretapping,
As of some one gently sniffing, sniffing at our server's door.
“‘Tis some hacker,” I muttered, “tapping at our server door
Or just a virus, nothing more.”