Pro tip: I started using a separate email alias for every single online account
After my Target account got caught in that 2022 breach, I set up a catch-all domain and now use a unique address like target@mydomain.com for each sign-up. When I started getting spam to an address I only gave to a local pet store, I knew exactly who sold my data. Has anyone else tried this and found a good, cheap domain registrar that doesn't require a ton of tech skills?