Connected
The interdependence of distinct services is hardly news but this week saw several examples of the risks this creates.
Secure messaging platform, Signal, revealed that a breach of Twilio led to the exposure of the phone numbers and SMS registration codes for 1,900 of its users. Twilio provides SMS registration services for Signal and while attackers had access to Twilio's systems they would have been able to take over a Signal account by re-registering the phone number associated with it. As a result of the breach, Signal says it saw searches for three specific phone numbers and one of the corresponding accounts was hijacked. In Signal's case, this can be prevented by enabling registration lock and the account PIN.
An attack on email marketing platform, MailChimp, resulted in the exposure of email addresses belonging to users of cloud provider, Digital Ocean. According to Digital Ocean, it took MailChimp several days to admit what was actually happening. Initially, MailChimp had said the disruption to its platform was related to a cyberattack targeting crypto currency-related users. This is the second such breach of MailChimp's systems in four months.
In a survey by Proofpoint, 58% of respondents said third parties and suppliers had been the target of attacks. “As organizations adopt cloud infrastructures to support their remote and hybrid work environments, they must not forget that people are the new perimeter,” Proofpoint said. “It’s an organization’s responsibility to properly train and educate employees and stakeholders on how to identify, resist and report attacks before damage is done.”