D-Link has been known to roll out some fairly significant firmware updates for its routers in the past, and while this latest won't exactly breath new life into your old clunker, it does at least break a tiny bit of new ground in its own little way. While the company is obviously quick to point out that its routers are already some of the most secure around, it apparently thought they could still do with a bit of added protection, so it's now added some annoying but reliable CAPTCHA tests to a number of its existing models. That includes the DIR-615, DIR-625, D