Why Operation Mincemeat worked and would be harder now

Could an operation like Mincemeat succeed again?

Possibly, but modern forensics and digital identity checks would make the fabricated person and documents far harder to authenticate.

Operation Mincemeat exploited an idea so unusual that the enemy was less likely to expect it. A dead man was dressed and documented as a Royal Marine officer carrying false plans intended to misdirect Axis attention before the invasion of Sicily. The body was released off Spain so the documents could plausibly reach German intelligence. Modern forensic science would make it much harder to create a convincing identity, cause of death, travel history, and chain of possession. A present-day version would also need a credible digital and social record rather than only letters and photographs. The answer still leaves room for deception because success depends not only on available science, but on whether the receiving side applies it competently and recognizes what it is seeing.