Calls received by 66,606 phone lines over 11 months showed that voice spammers are unsophisticated but persistent.
The fundamental economics of crime remain the same, whether the vehicle is an international email or an international voice call.
An FCC order means traffic may be blocked if reasonable analytics suggests it would not be wanted by the recipient.
The international gateway providers were given 48 hours to end the flow of scam robocalls that originated overseas.
AdaptiveMobile Security has witnessed an increase in spam that exploits anxiety about the novel coronavirus. These attacks fall into three categories.
Anti-spam firm Truecaller claims that telcos generated almost half of the 45 spam voice calls that Brazilian phone users receive each month.
Some ruses to encourage users to download malware are so convincing that you have to admire the effort that went into the deception.
Both SS7 and Diameter signaling protocols can suffer serious security vulnerabilities that few telcos are equipped to deal with.
Our industry needs to think seriously about how we maintain the integrity of email addresses, if we want to keep using them as a key that opens access to other online services.
US prosecutors accuse two Vietnamese of hacking into 8 email providers, then unleashing spam which generated USD2mn of revenues via the marketing websites of a Canadian conspirator.