Defined Contribution Plans: Federal Guidance Could Help Mitigate Cybersecurity Risks in 401(k) and Other Retirement Plans, GAO-21-25, Published: Feb 11, 2021. Publicly Released: Mar 15, 2021. “In their role administering private sector employer-sponsored defined contribution (DC) retirement plans, such as 401(k) plans, plan sponsors and their service providers—record keepers, third party administrators, custodians, and payroll… Continue Reading