Tampering with live video footage from surveillance cameras is illegal and unethical. Video footage from surveillance cameras is often used for security and legal purposes, and unauthorized tampering may result in serious legal consequences. In addition, tampering with footage may also violate the privacy rights of others. On a technical level, it is theoretically possible to attempt to tamper with surveillance footage through certain means, such as hacking into the camera system or using video editing techniques. However, these actions usually require very specialized technical knowledge and are criminal offenses in many countries. If there are concerns about the security of your surveillance system, you can consider improving security through the following measures: 1. Use strong passwords and change them regularly. 2. Ensure that camera firmware and software are up to date to protect against known vulnerabilities. 3. Use encryption protocols to protect data in transit. 4. Limit access to the surveillance system to authorized personnel only. 5. Regularly review and monitor the system's logs to detect potential abnormal activities. Most importantly, the use of technology must comply with legal regulations and ethical standards. If there are any legitimate security or privacy issues, they should be handled through legal channels and professionals.