Muhammad Ajmal is expecting his PhD at Faculty of Engineering, University of Porto, Portugal in March 2016. He is currently looking for postdoc position in the area of Network Security, VoIP Security, Cloud Security and Privacy-Aware collaboration for intrusion and anomaly detection. During his Ph.D. he explored ways and means for blocking non-legitimate (Advertisers,telemarketers) or spam callers through use of social network features and privacy-aware collaboration among multiple service providers. He is also member of Center for Multimedia and Telecommunication Unit at INESC TEC, Porto, Portugal. Ajmal has MS in Electronics Engineering with majors in computer and telecommunication networks.