Prevent Infostealer Infection
Build practical personal and organizational controls that reduce delivery, execution, and credential exposure.
In this lesson, you will learn to:
- Select layered controls that reduce infostealer delivery, execution, collection, and credential-reuse risk.
Prevent Infostealer Infection
This lesson turns the course into an action plan. You will prioritize secure software, browser and identity controls, least privilege, patching, awareness, and recovery readiness according to the risk they reduce.
Prevent the Infection and Limit the Blast Radius
Prevention is layered because infostealers exploit both technology and human workflow. Use trusted software sources, application controls, browser protections, patching, least privilege, phishing-resistant MFA, unique passwords in a protected password manager, and clear reporting routes. No single control should be treated as a guarantee.
Separate prevention from blast-radius reduction. A user may still encounter a convincing lure, so reduce what a local process can read and what a stolen session can reach. Use separate admin accounts, device health checks, short-lived sessions, conditional access, network segmentation, and strong recovery procedures where appropriate.
A good plan is prioritized and measurable. Identify the most likely delivery paths, the accounts and applications with the greatest impact, and the telemetry needed to know whether controls work. Assign owners and review dates. Avoid promises such as “users will never click”; instead measure reporting time, patch coverage, MFA coverage, application control, and response readiness.