Go to the relevant booking in your Airbnb account and use the Resolution Centre to file a claim with evidence including screenshots, photos, and messages. For phishing emails, forward them to report.phishing@airbnb.com. For account compromise, contact Airbnb Support directly via the Help Centre, phone, or app and request an urgent account review. If the incident involved property damage, theft, or identity fraud, file a police report as well. Leave an honest review of the guest to alert other hosts, and submit a formal report of the guest profile through Airbnb's platform.