VERY IMPORTANT

These domains show a broadening of entities targeted by Strontium’s activities. One appears to mimic the domain of the International Republican Institute, which promotes democratic principles and is led by a notable board of directors, including six Republican senators and a leading senatorial candidate. Another is similar to the domain used by the Hudson Institute, which hosts prominent discussions on topics including cybersecurity, among other important activities. Other domains appear to reference the U.S. Senate but are not specific to particular offices. To be clear, we currently have no evidence these domains were used in any successful attacks before the DCU transferred control of them, nor do we have evidence to indicate the identity of the ultimate targets of any planned attack involving these domains.