Hacktivism describes cyberattacks driven by political or social motives. Common tactics include DDoS attacks, website defacement, and data leaks aimed at drawing public attention to a cause. Unlike financially motivated cybercrime, the attackers seek visibility and impact. For your ISMS, hacktivism matters because your organization may become a target simply through its industry or business relationships. Your risk analysis should assess whether your sector attracts hacktivism groups. Appropriate countermeasures include DDoS protection, monitoring, and a tested communication plan for publicly visible incidents.