You have been receiving SMS from Banks, Service Providers, Companies and many other recognized organizations, institutes that have started prefixing something like TA, AD, ID, AT, VK…etc. What’s all this after all!!?
Normally these SMSs originates from a Bulk SMS provider where they use minimum 9 digit Alpha-Numeric characters as “Sender”. But there were some security risks in this method. They can give a phone number as “Sender” & it appears as that person at the recipient end. Basically...