Interview preparation
Explain confidential work without sharing private details
Build the story in layers: what is already public, what you personally did, a result described in general terms, and a list of details you will leave out. Check your employer's confidentiality terms before the interview, and decide in advance where you will stop if a question pushes further.
Work I want to describe: [ ] Public context I may state: [ ] Source that shows it is public: [ ] My own contribution, in plain terms: [ ] Result described in general terms: [ ] Details I will omit: Names of clients or partners: [ ] Numbers or dates: [ ] System or project names: [ ] Anything else: [ ] Policy or agreement I checked: [ ] My line if asked for a withheld detail: [ ] Person I can ask about disclosure: [ ]
Details that identify the work
Specifics that seem harmless can still point to a client, a product or a deal. Look for a client's name, exact figures, internal system names, project code names, dates that match a known event, and rare combinations of facts. Even a general result such as "cut processing time by a large margin" can identify the work if it matches a public announcement. Check your employer's policy or contract before relying on your own judgment, and when unsure, leave the detail out.
Read this answer as someone who might recognize the project. Flag every name, number, date, system or combination of facts that could reveal the client or deal. Mark each flag as remove or generalize. Do not add any detail to make the story stronger.
Rehearse the boundary
Practice the answer aloud, including a polite line for when someone asks for a detail you cannot share, such as saying you cannot go further on that point and offering to describe your own role instead. If anything in your agreement is unclear, ask your employer or whoever manages disclosure before the interview. Trim the answer until every sentence passes a check against your omitted list.