Business Insider has released a set of protocols for individuals wishing to share confidential information or documents with its investigative team. The news organization stated that while it prefers on-the-record sourcing, it offers these methods to assist sources who seek anonymity or wish to minimize the risk of identification by employers or other institutions.
The guidance emphasizes the importance of using nonwork devices and internet connections to avoid workplace surveillance. The organization notes that traditional communication methods like email and standard phone calls possess security gaps, prompting the recommendation of encrypted technologies and physical security measures.
For digital communication, the outlet suggests using the Signal messaging app, managed by the nonprofit Signal Foundation, due to its end-to-end encryption for both text and voice calls. WhatsApp is also listed as an encrypted option, though the guide notes that Meta, the parent company, stores conversation metadata which may be subject to subpoenas. For those choosing email, the organization recommends Switzerland-based Proton Mail rather than workplace accounts.
To protect physical anonymity, the organization advises using public mailboxes far from a source's home or office. Recommended procedures include using gloves to handle materials, purchasing postage with cash, and utilizing self-sealing envelopes. The guide also warns that many printers embed watermarks containing serial numbers and timestamps that can be used to identify who printed a specific document.
The organization provides mailing addresses in New York, San Francisco, and London for physical submissions. No specific deadline for these protocols was reported.