Your home wireless router is both a blessing and curse. It's a blessing because you can connect your gadgets to the Internet no matter where you roam, assuming you have a solid Wi-Fi signal, of course.
The curse is that if you aren't careful with your wireless security, a hacker outside your home can break into your network and use it for illegal activities. A router with certain security flaws can also be attacked from the Internet, and there are routers that do have this flaw.
Routers from TrendNet, D-Link and potentially other manufacturers that used the RealTek software development kit to create their firmware are vulnerable to hackers breaking in from the Internet and running malicious code on your network. That's worrying, but it gets worse.
The worrying part is that manufacturers have known about this flaw for two years and done nothing to fix it. And it doesn't look like they plan to.