U.S. Attorney General Eric Holder Jr. has turned up the heat on Congress to pass legislation to create a national standard for notifying customers of data breaches, saying: “It is time.”

Citing last year’s massive data breaches at Target Corp. and Neiman Marcus Group Ltd., Holder said in a video message on Monday that lawmakers should make “a strong, national standard for quickly alerting consumers whose information may be compromised.” At present, 46 states and the District of Columbia, Guam, Puerto Rico and the Virgin Islands enforce differing standards for data breach notifications, according to the National Conference of State Legislatures.