Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2018/05/maliciously_cha.html
The problem, of course, is that there isn’t any authentication of change-of-address submissions:
According to the Postal Service, nearly 37 million change-of-address requests known as PS Form 3575 were submitted in 2017. The form, which can be filled out in person or online, includes a warning below the signature line that “anyone submitting false or inaccurate information” could be subject to fines and imprisonment.
To cut down on possible fraud, post offices send a validation letter to both an old and new address when a change is filed. The letter includes a toll-free number to call to report anything suspicious.
Each year, only a tiny fraction of the requests are ever referred to postal inspectors for investigation. A spokeswoman for the U.S. Postal Inspection Service could not provide a specific number to the Tribune, but officials have previously said that the number of change-of-address investigations in a given year totals 1,000 or fewer typically.
While fraud involving change-of-address forms has long been linked to identity thieves, the targets are usually unsuspecting individuals, not massive corporations.