Abstract Deepthi Ratnayake MBCS, Senior Lecturer in Computer Science (Cyber Security & Networks) at the University of Hertfordshire, discusses impact SolarWinds hack.

WiFi’s physical layer has increased in speed from 802.11b’s 11 Mbps to the Gbps rates of emerging 802.11ac. Despite these gains, WiFi’s inefficient MAC layer limits achievable end-to-end throughput. The culprit is 802.11’s mandatory idle period before each medium acquisition, which has come to dwarf the duration of a packet’s transmission. This overhead is especially punishing for TCP traffic, ...

Social media accounts are valuable for hackers for spreading phishing links, malware and spam. Furthermore, some people deliberately hack an acquaintance to damage his image. In this paper, a classification model is described for detecting these hacked Twitter accounts by examining changing features in behaviour. We look at changes in language, source, URL, retweets, frequency and time. Our mod...

We describe a system for the training of Second Language Acquisition Pronunciation (SLAP) for nonnative speakers. This speech recognition-based system is designed to mimic the valuable interactions between second-language students a d a fluent teacher. For OUT system, when a student speaks a word into SLAP’S microphone, it is analyzed to determine the p m of the word (if any) that is incorrectl...