On 25th August, 2021, the Technofest Association, Department of Computer Science (Security System Specialization) organized a webinar on “Cryptography and Network Security using java” for II year students (Batch: 2020 – 23) through google meet. Mr. N. Aashiq Ahamed, Cyber Security Analyst, Ozone Cyber Security was the resource person. The entire session was compered by Ms. A. Subhashini, and Mr. Bala Ganesh of II CS(SSS). The keynote address was given by Mrs. N. Anuradha, Head of the Department. The felicitation address was delivered by Mrs.K. P.Maheswari Assistant Professor. The special address was given by Mrs. S. Nirmala Devi, Assistant Professor. The resource person explained the importance of learning cryptography and its implementation through java programming. He also demonstrated cryptographic functionality through online tools. He explained job opportunities in cryptography by sharing his experience as a Cyber Security Analyst. Totally 51 studentsparticipated in the webinar and they made the event interactive and got all the doubts clarified.  Finally vote of thanks was delivered by Mr. S. Jeyaraman of II CS(SSS).