Chinese Hackers Target Major U.S. Telecoms in Massive Data Breach
The breach lasted for 18 months, going undetected until recently
This breach is one of the most significant in U.S. history, targeting critical telecommunications infrastructure
The U.S. government has sanctioned a Beijing-based company linked to the hackers.
China has denied the allegations, calling them unfounded.
Experts warn of the growing sophistication of cyberattacks
Ongoing investigations into the scale and impact of the breach.