There is a significant debate within the FTC and in the public about the role data security should play in antitrust analysis, FTC Commissioner Rebecca Kelly Slaughter told the Cybersecurity Law Report on the sidelines of the two-day data security hearing at the FTC as part of its Hearings on Competition and Consumer Protection in the 21st Century. In this article, we cover insights from Commissioner Slaughter and others on the costs and complexities around data security during mergers, and on how the FTC can promote better data security policies. See also “Lessons and Trends From FTC’s 2017 Privacy and Data Security Update: Enforcement Actions (Part One of Two)” (Jan. 31, 2018); Part Two (Feb. 14, 2018).