The Biden administration has hit back after Russia humiliated the U.S. government with a mega-hack that breached the networks of multiple agencies and went undetected for months. Last year, Russian hackers breached at least a dozen U.S. agencies, including the country’s nuclear energy agency and the State Department, by breaking into SolarWinds, an Austin-based company that provides IT systems to government clients. On Thursday, the White House announced a string of measures against Russia in retaliation for the hacks, and repeated attempts to interfere in U.S. elections. The punishments include the expulsion of 10 diplomats including representatives of Russian intelligence services, the blacklisting of six tech companies said to support Russian intelligence operations, and an executive order banning U.S. banks from purchasing bonds issued by Russia’s government.