As a Chartered Financial Analyst (CFA), you are responsible for maintaining accurate investment analysis records. This includes documenting your investment recommendations, analyses performed, and data sources used. Recently, you noticed that your colleague has been using proprietary data from a third-party provider without proper acknowledgment in their records.
According to the CFA Institute's Code of Ethics and Standards of Professional Conduct, which of the following actions best embodies the ethical standards concerning the use of investment analysis records?