Cisco says hackers have been exploiting a critical bug to break into big customer networks since 2023 Security Technology us government Cisco says hackers have been exploiting a critical bug to break into big customer networks since 2023 Zack Whittaker February 26, 2026 The U.S. government and its allies said hackers have been exploiting the newly identified bug in Cisco... Read More Read more about Cisco says hackers have been exploiting a critical bug to break into big customer networks since 2023