Tivoli security professionals are pretty much in the Risk Mitigation business. Any organization who has any identity information in house on employees, customers, or partners will at some point address the risk of losing this information. And subsequently they will ask:
"What's the chance of losing that information?"
"What's the cost to us if that information gets lost?"
"What should we do about it?"
The answers are undoubtedly, ignore the risk, accept the risk, mitigate against that risk, or just buy some extra insurance.
Organizations large and small are thinking about how important it is to deprovision accounts that are no longer needed. Doing this via e-mail is not going to work well. This is one main reason Identity Management systems exist.
These latest security breaches illustrate the headaches organizations face when they fail to ensure that their former employees are removed from accessing their IT systems:
And this one was even more brazen by an American Express employee. Holy crap $1 million. This guy had a good job watching over the systems that hold data for many of us. I'm not sure how you prove that a laptop which is reported stolen wasn't really stolen. This dude should go to jail for a long time.