But the brief focuses on the security implications of aggregating and housing sensitive information, such as names, addresses, party affiliation and partial social security numbers, in one central location, without adequate security and privacy safeguards. “A large database aggregating [personally identifiable information] of millions of American voters in one place, as the Commission has compiled and continues to compile, would constitute a treasure trove for malicious actors,” the signatories wrote.
The brief states that the commission does not appear to have established rules or procedures defining who gets access to the database or how it should be actively protected.
Armed with detailed voter information, foreign adversaries could conduct targeted information campaigns against specific groups of voters, echoing Russian interference during the 2016 election, the filing claims. Clapper and his co-signatories also said that the database will be situated on a re-purposed White House system, and not within the Department of Defense, making the information even more vulnerable to theft. “Aggregating a comprehensive and official set of such data onto one high-profile, widely publicized server maintained by the White House may reduce the technical and practical barriers to a foreign adversary acquiring such information and making use of it without detection,” the brief said.
Clapper and the other experts added that malicious actors could also alter the database itself, leading the Trump administration to act on false information. Such manipulation could eventually result in the wrongful removal of legitimate voters from voter rolls.
“We now know better than 12 months ago just how much foreign governments would like information on American voters,” said Joshua Geltzer, executive director of Georgetown’s Institute for Constitutional Advocacy and Protection and one of the co-authors of the brief.
A White House spokeswoman did not respond to a request for comment.
Filed in the United States District Court for the District of Columbia, the brief supports a lawsuit by Common Cause, a nonprofit government watchdog group, that seeks to halt the commission's collection of a wide array of sensitive data about American voters. Other signatories include the former director of the National Counterterrorism Center Matt Olsen, and former U.S. deputy chief technology officer Alex Macgillivray.