California's Income and Capital Growth Strategies, Inc., recently began notifying its clients that a hacker or hackers had gained unauthorized access to its computer network on or about July 12-15, 2013 (h/t DataBreaches.net).

While it appears that company principal Doug Thorburn was the target of the attack, the notification letter [PDF] states that the hackers may also have accessed clients' names, addresses, Social Security numbers, birthdates, driver's license numbers and bank account information.

"We are disclosing this possible breach even though we do not believe it is reasonable to assume that any unauthorized people actually accessed your information," the letter states. "Regardless, we are following up with law enforcement detectives and doing everything to ensure this never happens again."

The company isn't offering its clients any free credit monitoring services following the breach, but it is recommending that all clients request and review their credit reports from the three main credit reporting agencies.