U.S. telecom service supplier T-Cell stated it just lately detected makes an attempt made by dangerous actors to infiltrate its techniques in current weeks however famous that no delicate knowledge was accessed.
These intrusion makes an attempt “originated from a wireline supplier’s community that was related to ours,” Jeff Simon, chief safety officer at T-Cell, stated in an announcement. “We see no cases of prior makes an attempt like this.”
The corporate additional stated its safety defenses prevented the risk actors from disrupting its companies or acquiring buyer info. It has since confirmed that it lower off connectivity to the unnamed supplier’s community. It didn’t explicitly attribute the exercise to any identified risk actor or group, however famous that it has shared its findings with the U.S. authorities.
Chatting with Bloomberg, Simon stated the corporate noticed the attackers working discovery-related instructions on routers to probe the topography of the community, including the assaults have been contained earlier than they moved laterally throughout the community. T-Cell is the primary firm to publicly acknowledge the cyber incident.
The event comes shortly after experiences {that a} China-linked cyber espionage group referred to as Salt Hurricane (aka Earth Estries, FamousSparrow, GhostEmperor, and UNC2286) focused a number of U.S. telecom firms, together with AT&T, Verizon, and Lumen Applied sciences, as a part of an intelligence gathering marketing campaign.
“Merely put, our defenses labored as designed – from our layered community design to sturdy monitoring and partnerships with third-party cyber safety consultants and a immediate response – to forestall the attackers from advancing and, importantly, stopped them from accessing delicate buyer info,” Simon stated. “Different suppliers could also be seeing completely different outcomes.”