He might be most well-known for founding the international tech behemoth Microsoft and for having the title of richest man in the world several times, but Bill Gates is also an active player in the health industry. Most of this revolves around his philanthropic pursuits, donating hundreds of millions to good causes. In a recent speech that he gave during the Munich Security Conference, he warned that over 30 million people could soon be killed by bioterrorists in just one year.

Gates has been a huge player in the global health industry’s fight against sickness for the better part of 20 years, The Guardian reports, providing much-needed funding for research and charity work. It would seem that he didn’t spend all that time simply funneling money into different programs and was actually paying attention to what the data has been saying.

“We ignore the link between health security and international security at our peril,” Gates said. “The next epidemic could originate on the computer screen of a terrorist intent on using genetic engineering to create a synthetic version of the smallpox virus ... or a super contagious and deadly strain of the flu.”

The billionaire philanthropist isn’t alone in thinking this as well. Intelligence agencies from both the UK and the US have been warning that ISIS has been trying to develop bio-weapons over the course of its existence, and with the availability of powerful gene-editing tools as well as advanced artificial intelligence, this goal is only becoming easier to accomplish.

Gates believes that the world can head off this catastrophe, however, if several steps are implemented. For one thing, the development of better vaccines, medicine, and diagnostic tools must become a priority, Futurism reports. Gates also wants improved surveillance practices in order to quickly detect the spread of epidemics, so that they can be contained and cured as soon as possible.