Key takeaways
- Ask exactly what is encrypted, in transit and at rest, and whether keys are separated per customer.
- Ask whether the model is end-to-end or auditable, because it decides who can read messages.
- Ask when the vendor's staff can access content, and whether that access is logged.
- Ask where data is processed, how long it is kept and how deletion works, including backups.
- C Chat's answers are summarized on this page so you can compare them with other vendors.
Choosing a messaging tool for your company is a security decision, even if it starts as a convenience decision. Your team will share client names, access codes, incident photos and personal data in it. A short questionnaire, sent before you roll out, separates vendors that can explain their controls from those that only repeat marketing terms. For a deeper method on encryption claims specifically, see how to evaluate a vendor’s encryption claims.
Why it matters
Once a team has adopted a chat tool, switching is expensive, so the time to ask hard questions is before the first invite. The answers also feed your own obligations: privacy notices, retention policy, incident response and any client security review you have to pass.
Encryption and keys
Ask precise questions; a slogan about strong encryption is not an answer.
- In transit: Is all traffic protected with TLS? See what TLS is.
- At rest: Are messages and files encrypted on the vendor’s servers, and with what algorithm? See what encryption at rest is and what AES-256 is.
- Keys: Are keys separated per customer organization? Who manages them?
- Model: Is the product end-to-end encrypted, or does it use a model where the business or vendor can access content under defined conditions? See what end-to-end encryption is.
C Chat’s answers: TLS in transit; AES-256 at rest with per-organization keys; an auditable model, not end-to-end encryption. The model is explained in auditable encryption for business chat.
Access by the vendor
The most revealing questions are about people, not algorithms.
| Question | What a good answer looks like |
|---|---|
| When can vendor staff access message content? | A short, specific list of conditions |
| Is that access logged? | Yes, with who, when and why |
| Can the customer’s admins read private messages? | A clear yes or no, by message type |
| How are law enforcement requests handled? | A documented legal process |
C Chat’s answers: the platform accesses content only to moderate reported messages or for legal requirements, and that access is logged. Team owners and admins can audit and export the team’s group conversations; direct messages between people are private.
Data location and retention
- Where is data processed and stored? Can you choose a region?
- How long are messages and files kept? Can you configure retention?
- Are there backups, and how long do deleted items remain in them?
C Chat’s answers: C Chat is provided by CGuard Pro LLC (Texas, USA) and does not offer a choice of data location or configurable retention schedules. For storage details, read the privacy policy and contact support@cguardpro.com.
Account deletion and exports
- Exports: Can the business export conversations it needs for disputes or compliance? Which ones?
- Removal: How fast can you remove a person from the workspace, and what do they lose access to?
- Account deletion: How does a user delete their account, and what happens to their data?
- Leaving the vendor: If you stop using the service, how do you get your data out?
C Chat’s answers: owners and admins can audit and export group conversations; people can be removed from the team; any user can request deletion through the delete account page. For preservation during disputes, see legal hold and eDiscovery for business chat and exporting chats for compliance.
How C Chat helps
C Chat aims to make this questionnaire short. The security model fits in one paragraph: TLS in transit, AES-256 at rest with per-organization keys, auditable group conversations, private direct messages, logged platform access limited to moderation and legal requirements. Contact matching hashes phone numbers with SHA-256 on the device, and the server does not store the hashes. If you are comparing options, the secure business messaging apps comparison and how to choose a secure messenger put these answers in context.
Getting started
Copy the questions on this page into a document, send them to each vendor you are considering and compare the written answers side by side. To see C Chat’s model in practice, create a test team at getcchat.com/c, or read the security overview first.
Frequently asked questions
What questions should I ask a chat app vendor about security?
Start with encryption (in transit, at rest, key management), access (who at the vendor can read content and when), data handling (location, retention, deletion, backups), control (exports, admin roles, removing users) and accountability (security contact, incident notification, terms and privacy policy). Ask for written answers.
Is end-to-end encryption always the best choice for a business?
Not always. End-to-end encryption means only participants can read messages, which maximizes privacy but means the company cannot review or export work conversations. Auditable encryption protects messages in transit and at rest while letting the business oversee its group conversations for compliance. The right choice depends on your obligations.
What are C Chat's answers to a security questionnaire?
C Chat uses TLS in transit and AES-256 at rest with per-organization keys, in an auditable model: team owners and admins can audit and export group conversations, and direct messages between people are private. The platform accesses content only to moderate reported messages or for legal requirements, and that access is logged. It is not end-to-end encrypted.
Should I ask a messaging vendor for certifications?
If your industry or clients require specific certifications or audit reports, ask for them directly and verify them. If a vendor does not hold a certification you need, decide whether its documented controls are enough for your risk. C Chat does not claim compliance certifications; it describes its controls so you can assess them.