Signs My Device May Have Been Hacked
Recognize common warning signs of malware or account compromise and learn how to investigate them safely.
Common Warning Signs of Compromise
Unexpected pop‑ups, sudden performance slowdowns, unexplained data usage, or programs opening and closing by themselves can all hint at malware or remote control. Likewise, logins from unfamiliar locations, password reset emails you did not request, or messages sent from your account without your knowledge suggest account compromise.
None of these signs prove hacking on their own, but clusters of unusual behavior should prompt a deeper investigation before more damage occurs.
Checking Running Processes and Network Connections
On desktop systems, built‑in tools let you inspect which applications are consuming resources and making network connections. Suspicious entries do not automatically mean malware, but they are good starting points for further research.
Use the following commands to list active connections and processes, then search unfamiliar names online or consult trusted security forums before taking action.
Run these from an elevated Command Prompt or PowerShell window.
tasklist # List running processes
netstat -ano | findstr ESTABLISHED # Active TCP connections
wmic process get name,executablepath # Show process paths (older versions)
Use Terminal to gather quick diagnostics.
ps aux | head # Sample of running processes
lsof -iTCP -sTCP:ESTABLISHED # Established TCP connections
netstat -an | head # Summary of network sockets
Related Articles
10 Ways to Protect Personal Identifiable Information Online
Learn practical steps to protect sensitive personal data such as addresses, ID numbers, and financial details when you use the internet.
What Is Doxxing and How Do I Prevent It?
Understand what doxxing is, why it is dangerous, and how to reduce the chances of your personal details being exposed.
What Is a Password Manager? Simplify Password Management
Learn how password managers work, why they are safer than reusing passwords, and how to use them effectively.