Tampering with the results of online voting systems to improperly influence public opinion or decision-making is a serious violation of the principle of fairness and justice. Common means include: 1. **Attack the server**: - Use network attacks, such as distributed denial of service attacks (DDoS), to paralyze the voting server, disrupt the normal voting process, and then take the opportunity to implant false voting data after the server is restored. - Directly invade the server system, tamper with the database storing voting results, and modify the real vote record. 2. **Exploit program vulnerabilities**: - Discover vulnerabilities in the program code of the voting system, such as input validation vulnerabilities. Attackers can bypass the validation mechanism by constructing special inputs and inject illegal voting data into the system. - Exploit session management vulnerabilities to hijack the sessions of legitimate users and use their identities to conduct malicious voting or modify voting results. 3. **Manipulate the client**: - Develop malware to infect the devices of users participating in the voting, automatically simulate user operations to conduct a large number of false votes. - Through social engineering means, induce users to operate on fake voting pages implanted with malicious scripts, deceive users' real voting information and tamper with it. 4. **Insider violations**: - Internal personnel who develop, operate or manage the voting system use their position to directly modify the voting data in the system. - Collude with external attackers to provide system permissions or key information to assist in tampering with voting results.