The security issue uncovered by research from cybersecurity firm UpGuard and it was allegedly cause by misconfigured security settings on cloud server due to 'Human error'.
The error made customer phone numbers, name and some PIN code publicly available online. PIN codes are use to confirm the identity of people who call for customer service.
Verizon customers are advised to Update their PIN codes and not use the same. This is the latest leak to surface from a misconfigured Amazon S3 storage unit. In June, an analytics firm expose the data of almost 200 million voters, and earlier this month, an insecured server leaked 3 million WWE fans' data last week.
Chris Vickery, a researcher at UpGuard, discovered that Verizon data was leaked by NICE system, an Israel-base company Verizon was working to facilitate customers service calls. This data was collected over the last six months. Vickery alerted Verizon to the emanate on June 13. The security hole was closed on June 23, 2017.