Chinese hackers have penetrated the computer system of the US Treasury Department and stolen data records. This was revealed in a letter from the Department to members of the US Congress, which was made available to the Reuters news agency. According to the letter, data that is not classified was stolen in what was described as a „serious incident„. The Ministry was alerted by its IT security service provider BeyondTrust and is now working with the US Cybersecurity and Infrastructure Security Agency (CISA) and the FBI to assess the impact of the hacker attack.