First, your old electronics are chock full of toxic stuff that should never make it to a landfill, like arsenic, lead, and cadmium. If those materials make it into landfills, they can potentially leak into our ecosystem, damaging plant and animal life and potentially impacting our food supply.

The green argument aside, there’s another good reason not to toss your old tech: It keeps your personal information safe. If you throw away your old computer, there’s no telling who might be able to get their hands on your hardware—and, by extension, your data.