For more than four years, malware has been posing as legitimate software and infecting industrial equipment across the globe. The malware, which looks just like the Siemens control gear software, has affected at least seven plants in the US. According to security experts, the malware was specifically designed to attack this industrial equipment, but what it does is not totally known. It is only described as a type of “crimeware.” The malware was first hinted at in 2013, but at that time, it was not seen as dangerous, and many anti-virus programs were flagging it as dangerous, but it was considered a false positive. Eventually, it was seen as a type of basic malware, and upon further inspection, it was found that there are several variations. The most recent flag was in March 2017. This particular infestation is only one of many malware infections that target industry. Approximately 3,000 industrial locations are targeted with malware each year, and most of them are Trojans, which sometimes can be brought in by staff on found or compromised USB sticks. Most of these programs aren’t extremely harmful, meaning they won’t shut down production. However, what they could do is pave the way for more dangerous threats down the road. It also allows for sensitive information to be released. It is not easy for hackers to infiltrate an industrial plant, and it takes good knowledge of layout, industrial processes, and even engineering skills to pull something like that off. This goes way beyond a simple malware attack. However, these attacks have also brought to light the issue of how many legitimate files are being flagged as malware and vice versa. This means that the files can be used by the bad guys, who can then target a specific industrial site. There are thousands of these programs out there, ripe for the picking by observant hackers. What can they do if they get this information? They could find out where the site is, who operates it, the layout and configuration, what software they have, and even what equipment they are using. Though this wouldn’t give them everything they need, it would be enough to plan a bigger, more dangerous attack. Robert Siciliano personal security and identity theft expert and speaker is the author of 99 Things You Wish You Knew Before Your Identity Was Stolen . See him knock’em dead in this identity theft prevention video.