The school network billing system deals with students’ online behaviour and consumption data, which involve privacy compliance and security audits. After a period of operation, the audit department first checks the logs when there is an incident of data disclosure, user complaints or regulatory inspection. Log records are incomplete, operational marks missing, and data retention irregularities, each with a hard wound. Here are a few easy-to-step pits in Log Audit and compliance requirements.
User Behavior Logs are not kept long enough
How long should the user behavior logs be kept on school network billing? Many people will answer."Look at the hard drive."Or..."Six months is enough."However, as required by the Cybersecurity Act and the Data Security Act, vital information infrastructure logs are kept for no less than six months and important data for longer. The network billing system in schools is not a critical information infrastructure, but it is prudent to follow implementation. User behavior logs are recommended to be retained for at least six months, with logs covering sensitive operations for more than one year. Logs are archived in independent storage media (not only in production repositories), avoiding loss of logs due to production bank failures.
Administrator operating logs are incomplete
The student's behavior log on the Internet is generally well-remembered, but managers often ignore their own operating log.——Changes in rates, refunds, refunds, changes to user groups, and access to privacy data. These operations must have a full log record: who, when, what IPs, what you did, what you changed before and after. If an audit finds that the administrator operates without marks, the entire system will be called into question. The administrator also has to authenticate double factors to avoid malpractice after account numbers are stolen.
Poor log query performance caused audit failure
Logs are recorded but not available. The logs of the school network billing system are large (which may be millions per day), and if a user ' s six months of behavior can wait minutes or even hours without specialized log queries optimization. Audit authorities slow down the entire audit process when checking logs if they're Carton. Better to write log data into a dedicated log library (e.g., Elasticsearch) to ensure performance through distributed query.——A user behavior trajectory, an IP access log, unusual traffic at a certain time, etc.——(c) Improving the efficiency of audits.
Sensitive data not dissensitive stored
The logs of the school network billing system have a very significant impact if they store the user's cell phone number, ID number, and full coding number.——The mobile phone number is 138****5678, and the ID number only shows the last four. At the same time, log access requires a graded authorization, ordinary operators do not see sensitive fields, and only auditors can view complete data.
Log access rights for third-party vendors
In such cases, the range of access to the vendor must be controlled.——The best way to do this is for the vendor to access the fort machine, all operations with video marks and sensitive operations to be reviewed by insiders. The vendor’s access rights are periodically re-recorded, and exiters withdraw their accounts in a timely manner.
Common actions for compliance checks
The school network billing system may face multiple compliance checks each year: internal audit of the education system, inspection of the public safety network, informatization check at higher levels, third-party security assessment, etc. The usual actions during inspections include requiring that a time-frame logbook be exported, requesting administrator records to operate, asking for data encryption to be checked and requesting a demonstration of data desensitivity processes. Schools must familiarize themselves with these checks well in advance and prepare their corresponding logs and files.
Security of logs and audit data themselves
The audit is meaningless if the log data of the school network billing system are tampered with or deleted. Log storage is sufficient"Integrity"Request——Cannot be modified after writing, removing marks. It is suggested that the storage of append-only (such as a specialized NATSHEL_LOG_AUDIT device) or digital signature technology be used to guarantee log integrity. Periodic check for log completeness (sampling whether logs have been altered) and record the results as evidence of compliance. The security of log data itself and log records are as important as their own.