Clickbait. According to the article:

"There’s no evidence that CAM4 was hacked, or that the database was accessed by malicious actors."

but rather:

"security review site Safety Detectives found that CAM4 had misconfigured an ElasticSearch production database so that it was easy to find and view heaps of personally identifiable information".

So, it didn't "leak" 10B records, as the headline suggests, as you'd need a third party to leak to.