Computer and network hacking has been a fact of life for some time now. However, the issue came to the forefront recently when the Obama administration revealed that major hacking attacks against US interests were coming from computers in China. The tech headlines are full of hacking/hijacking news: "Yahoo and Microsoft have long way to go in account hijack fight"; "Microsoft latest to 'fess up to Java-based Mac attack"; "HTC settles with FTC over smartphone security holes"; "NBC.com HACKED to spread bank account-raiding Trojan"; "Obama's new cyber-security tactics finger corrupt staff, China." Of course, your computer has been subject to many security vulnerabilities through holes in Java and other programs. But your computer is small potatoes. The amateurs go after you so they can collect fraud dollars. The big stakes are in government and business hacks. There the hackers get national secrets and steal proprietary business information. A while back I mentioned in a column that this was going to get serious. We are just beginning to see this. Don't be surprised to see an all-out cyber war begin with major consequences to security and infrastructure. The government - and business - need to focus sizable resources on getting security up to snuff for our nation, businesses and your computer. Don't forget that you are responsible to do as much as you can. Make sure you know what antivirus you have on your computer. Make sure it is a good one. And make sure you know it well and keep it maintained.