Select ALL listed routes by which malware may spread.

### Why this is right - **Phishing emails** can persuade users to open harmful attachments or links. - **Malicious websites** can expose visitors to harmful content or exploit weaknesses. - **Infected USB drives** can transfer malware when connected or when files are opened. - **Software vulnerabilities** can provide an entry point for malicious code. ### The concept Malware reaches systems through both technical weaknesses and human decisions. Social engineering, such as phishing, manipulates people; a software vulnerability is a weakness in software. A backup is a recovery measure, not an infection route by itself. ### The other options - **A correctly configured backup by itself**: A backup is intended to support recovery. It is not listed as a malware-spreading route, though a compromised backup environment can present risks. ### Terms - **Phishing**: Deceptive communication intended to make a person reveal information or take an unsafe action. - **Software vulnerability**: A weakness in software that can be misused. - **USB drive**: A removable storage device that can transfer files between systems. ### Remember Separate entry routes, such as phishing, from recovery controls, such as backups.