North Korea recently hacked Pfizer to steal vaccine development-related secrets A high level source's report contradicts statements made by the National Intelligence Service about a North Korean cyberattack on Pfizer 2021.02.24 1:34pm A newly-formed hacking unit inside the Reconnaissance General Bureau (RGB) recently hacked Pfizer to steal vaccine development-related secrets, a high-level North Korean source told Daily NK on Monday. The source said that members of the Bureau 325 in the RGB conducted the hacking operation against Pfizer recently and made several attempts to collect information based on what the source called “meticulous planning.” While it is unclear what exactly North Korea was able to take from Pfizer through these attempts, the source told Daily NK that the hacking operation was aimed at stealing “technology” required for vaccine production.