You may have heard about a lawsuit filed regarding a data breach concerning social security numbers. I encourage you to read at least the first few pages of the linked class action complaint to see how massive a violation of privacy this is.
The data breach concerns National Public Data, a company which offers background checks. They collect personally identifiable information (PII) as a part of their business. The defendant claims that NPD scraped PII from non-public sources (¶11). NPD then stored the data in an insecure manner and did not adequately protect this personal information (¶25). Consequently, a hacking group by the name of "USDoD" stole records of 2.9 billion individuals from NPD. According to the document, the data was independently reviewed by VX-underground, the cybersecurity company. They confirmed the breach included full names, address and address history, and social security numbers. They were also able to identify familial connections, both living and deceased (¶ 22-24).
Based on this class action complaint, NPD's conduct was grossly negligent, leading to potential identity theft for almost anyone in the United States. It was also a massive privacy violation by scraping data from non-public sources. Even after they took millions of Americans personal information, they failed to secure the data from hackers.
Criminals can ruin your life if they target you with this information. They can open lines of credit without you knowing. You might only find out until creditors call you, demanding that you pay them back (¶60).
So, yeah. I am very concerned. I'll have to figure out how to defend against this identity theft. Overall, I'm new to the privacy community, but I'm feeling like "privacy" in the United States is an absolute mess. If your data wasn't somewhere on the dark web, it might be now. Protect your data. Stay safe.
The credit monitoring companies have your up-to-date contact information (and verified) when you put the freeze in place. Now, should a third party try to open an account, etc. in your name it should be blocked from happening and the credit monitoring company should contact you.
If a scammer tries to unfreeze or otherwise modify your account with them they should also contact you.
If/when they contact you or you request your account be unfrozen then they’ll use old credit history to confirm your identity. These are a series of three or four random questions that a scammer is unlikely to know. For example they might ask you what kind of car you purchased in 2005, then give you 4 options, like Ford, Honda, Jaguar, or BMW, and then also a “nine of the above” option. Then they might ask you which of the following street addresses you used to live at, and list 4 seemingly random addresses, one of which you might have lived at.