Dissent Doe 
Entities rush to declare that data hasn't been stolen/they haven't been hacked. They often wind up looking like liars or just more incompetent when the hacker starts dumping or leaking data as proof.
This week's example: U. of Pennsylvania, which quickly declared they hadn't been hacked and it was just a vulgar email sent out. The hacker seems to have proved otherwise.
Penn hacker claims to have stolen 1.2 million donor records in data breach
A hacker has taken responsibility for last week's University of Pennsylvania "We got hacked" email incident, saying it was a far more extensive breach that exposed data on 1.2 million donors and internal documents.