Nearly 100 years ago, Charles Ponzi stumbled across a loophole in the international postal system and turned it into one of the most infamous scams of all time. This time on Sidedoor, we follow Ponzi from his early days until his epic downfall, and hear from a postal investigator trained to catch swindlers like Ponzi who continue to use the U.S. mail for nefarious purposes.

The Social Security Administration (SSA) scam is the
It started with a phone call. In a week, a scammer would take Nina Belis’s life savings. WSJ’s Sarah Krouse explains why robocalls persist: Because sometimes they work.