SLR1.4 – Network security OCR GCSE (J277) SLR 1.4 Forms of attack OCR GCSE (J277) SLR 1.4 Threats posed to networks OCR GCSE (J277) SLR 1.4 Identifying and preventing vulnerabilities Also in this topic... SLR1.1 – Systems architecture SLR1.3 – Computer networks, connections and protocols SLR1.6 – Ethical, legal, cultural and environmental concerns SLR2.2 – Programming fundementals SLR2.4 – Boolean logic