
The website for the U.S. Federal Depository Library Program appeared to intermittently go offline and display a message purporting to be from hackers in Iran Saturday, January 4, 2020.
An Organisation in Iran signing itself ‘Iran Cyber Security Group Hackers‘ posts messages vowing revenge for killing of Qassem Suleimani.
With a photo of a fist punching U.S. President Donald Trump is also visible in the screenshot.