A storefront, said Ortis, is a fake business or entity, either online or bricks-and-mortar, set up by police or intelligence agencies.

The plan, he said, was to have criminals use the storefront — an online end-to-end encryption service called Tutanota — to allow authorities to collect intelligence about them.

Tutanota (now Tuta) denies this: https://tuta.com/blog/tutanota-not-a-honeypot