How ideas from biology-evolution, immune systems and forensics-will keep your PC safe from hackers
This is not the first time China's been called out for a cyber-security breach
Until we figure out how to lock up the spammers, ditching Outlook can protect you from the worst they have to send
South Korean government sites are also struck. Was North Korea to blame?
Move aside, frat boys
During a week of attempting to cloak every aspect of daily life, our correspondent found that in an information age, leaving no trace is nearly impossible
By hacking into (fake) elections
9/11 fanned fears of more terror attacks by air. But our 95,000 miles of coast may be much more permeable. Here's the new defense strategy.
A new pair of specs may let you tag your world as easily as you tag a blog post--so long missing keys
High-tech security isn't just for the airport anymore. Advances now coming out of the labs will help protect what's dear to you, from your car to your kids, your dinner to your dinero
Tollbooths, ATMs, doctors' offices, online chat: You leave critical personal data behind wherever you go. Let's follow one American as he scatters his digital DNA.
What a national ID card might look like.
How safe can a citizen expect to be in a post 9/11 city? What technology can a city use to make its citizens safe?
In our all-digital economy, only the computer knows
Dogs are the best bomb detectors we have. Can scientists do better?
Toxin sniffers, missile jammers, dirty-bomb detectors: Will a new security arsenal make us safer?
New electronic voting machines are supposed to prevent another Election Day disaster, but these paperless PCs could make hanging chads seem like a minor nuisance.
As the U.S. campaigns against terrorism, new technologies will move to the front lines.
Out of the wild