My sense is that
- many manufacturers stop issuing firmware upgrades after a couple of years since there isn't any money to be made by doing so,
- even when they do, most home users don't know about firmware upgrades and so don't apply them,
- let alone applying OpenWRT or DDWRT where possible,
- most home users don't change the default credentials due to lack of knowledge.
So there are a lot of devices out there that are potentially easy pickings.
|