The U.S. Office of Personnel Management data breach has impacted approximately 21.5 million Americans, both inside and outside of the government, according to a CNN report.
Here are four things to know about the extent of the breach.
1. Government investigators announced this update on the OPM data breach. Sensitive information, including Social Security numbers, of 21.5 million people was compromised.
2. Hackers obtained information from SF-86's, the security clearance applications, of 19.7 million people. The other 1.8 million affected individuals, mostly spouses and partners of applicants, were non-applicants, according to the report.
3. The OPM's original estimate of the breach's extent was only 4 million people.
4. China remains a "leading suspect" in the cyberattack, according to the report.