Image: Woman with computer © Don Mason, Blend Images, Corbis

If anything in your home communicates data over a network or to an outside source, it can be hacked.

That's the harsh reality that online-security companies such as Symantec and Superior Solutions face, and one device-centric security firm -- Mocana -- is preparing for a post-PC world where everyone is wired and every device from a smartphone to the kitchen refrigerator is connected to a network. Even without hackers figuring out how to access every corner of a user's life, cybercrime is becoming a big industry.

A report released by Symantec earlier this month found that cybercrime cost victims $388 billion in time and money last year alone, hitting 431 million people in 24 countries. That number is rising steadily; the 54% of online adults who were victims of computer virus or malware attacks this year is up from 51% last year. Attacks against mobile devices are soaring as well, with Kapersky Labs finding that 65% more smartphones, tablets and other devices were targeted for malware attacks last year, compared with 2009.

A Mocana survey, meanwhile, found that 64% of professionals at companies including Apple, AT&T, Intel, IBM and Microsoft had experienced an attack on a non-PC device that required the attention of their IT staff. An additional 54% said that attack disrupted the company's network, but 51% said their companies still didn't update security or create patches to protect information on devices.

Researchers at Germany's University of Ulm discovered that Google Android devices not updated to the latest version of their operating system put calendar data, phone numbers, home addresses and email addresses at risk each time they connect to a network, making personal smartphones and tablets prime hacking targets. The hacking of Sony's PlayStation Network back in April, the ensuing shutdown and the exposure of nearly 100 million users' information brought the hacking problem home, without involving a PC, a tablet or even a smartphone to get in.

"If you look at every sector of the economy, it's consumer electronics, it's smart-grid and smart-energy infrastructure, it's health care and medical devices, it's industrial control, it's aerospace and defense, it's retail and it's transportation logistics," says Adrian Turner, the chief executive of Mocana. "All of those markets have or will have connected devices."

We spoke with executives at Mocana and Superior Solutions and found that security flaws on the following items allow as much access for hackers as a lockless door would for a passing burglar:

Internet televisions

There's some great, convenient, connected technology out there that makes life in the living room a lot easier. Those devices also make it a lot easier for hackers to get your information, passwords and even money as you use your HDTV to play around on the Internet.

"In the home, you have this whole other phenomenon, which is the explosion of phones, tablets and the next big wave, which is Internet-connected TVs," says Turner. "According to Moore's Law and the fact that we think in a linear way and don't realize how powerful these computers are getting -- or that $1 worth of computer power today will be worth 3 cents in five years -- we don't realize that these TVs are as powerful as the computers that were sitting on our desk 10 years ago."

Mocana bought several of the most popular Internet TVs just before the last holiday season and discovered that they were wide open to attacks. While most online TV functions are as benign as checking the weather with a Weather Channel app, getting scores through a Fox Sports app or cruising a Netflix queue, applications such as Amazon On-Demand pay-per-view -- which give hackers a financial incentive to access your network and steal passwords and other information -- prove problematic even when secured.

The holes in current Internet-TV security are just wide enough to allow hackers to present fake credit card forms and fool consumers into giving up their private information; intercept and redirect Internet traffic, which can trick consumers into thinking fake bank and shopping websites are legit; or steal TV manufacturers' digital "corporate credentials" to access a user's search engine or video-streaming and photo-sharing services.

The Sony hacks hit users through a network, but Internet televisions cut out the middleman entirely if they're not properly secured. That's upsetting now, but it could become much more troublesome by 2015, the year television market-research group DisplaySearch says 500 million Internet-connected TVs will be sold worldwide.

"There are issues with the majority of customers we work with, and a lot of the problem is implementation," Turner says. "You look at the Sony PS3 incident, and that was a well-thought-through, multilayered security model where they made some poor decisions when it came to implementation."

Home security systems

Sure, it's great that you can control your alarms, locks and remote notification through your smartphone and check your security cameras online. Just realize that means hackers can use those same commercial-friendly conveniences against you if they're able to access your home security system.

"People tend to think of these things as very different, but they're actually the same from a security perspective," says Turner, whose company also provides security software for video surveillance equipment, security systems and even Honeywell's building automation systems. "It's an Internet-connected device, it has a certain processor and operating system, and it's that combination of OS and CPU that people looking to break into a system or automated scripts to find devices are looking for."