Explore the linguistic patterns and markers that characterize malicious online communication in this 14-minute lecture from NPTEL-NOC IITM. Examine how persuasive urgency techniques are employed in phishing attacks to manipulate victims into taking immediate action. Analyze the escalation patterns commonly found in cyberbullying scenarios and understand how language intensifies over time in these harmful interactions. Investigate the coded markers and subtle linguistic cues used in hate speech to convey discriminatory messages while potentially avoiding detection. Learn to distinguish between legally protected speech and harmful communication by understanding the linguistic boundaries that separate legitimate expression from actionable online harassment and threats.