FireEye Mandiant Threat Intelligence documented more zero-days exploited in 2019 than any of the previous three years. While not every instance of zero-day exploitation can be attributed to a tracked group, we noted that a wider range of tracked actors appear to have gained access to these capabilities. Furthermore, we noted a significant increase over time in the number of zero-days leveraged by groups suspected to be customers of companies that supply offensive cyber capabilities, as well as an increase in zero-days used against targets in the Middle East, and/or by groups with suspected ties to this region. Going forward, we are likely to see a greater variety of actors using zero-days, especially as private vendors continue feeding the demand for offensive cyber weapons.
Since late 2017, FireEye Mandiant Threat Intelligence noted a significant increase in the number of zero-days leveraged by groups that are known or suspected to be customers of private companies that supply offensive cyber tools and services. Additionally, we observed an increase in zero-days leveraged against targets in the Middle East, and/or by groups with suspected ties to this region.