Chubb lands in Westchester County the week of the Mythos cyber arms race

Chubb’s Gulfstream G650ER, tail number N846CB, departed KLOM—Wings Field outside Philadelphia—on 19 May 2026 and touched down 42 minutes later at a private airstrip near 41.065, -73.705 in Westchester County, New York. The short, low-altitude hop from suburban Philadelphia to suburban New York suggests a direct meeting or executive transfer rather than a transatlantic leg, consistent with Chubb’s significant operational presence in New Jersey.

The same week of this flight, Chubb Insurance chairman and CEO Evan G. Greenberg was publicly warning about a new front in cybersecurity. On Chubb’s first-quarter earnings call, recorded on April 22, Greenberg said that Anthropic’s Mythos artificial-intelligence model had “lowered the threshold for vulnerability” and that an “arms race is on,” per an Insurance Journal report published April 23. Greenberg specifically identified middle-market organizations as the “biggest meatball” for attackers, calling them better targets than large or small companies because they have more money and weaker perimeter hygiene.

While no prior flights by this aircraft are available for comparison, Chubb’s public filings show Greenberg regularly shuttles between Zurich, New York, and Washington. The Westchester landing—close to Chubb’s White Plains-area offices and within easy helicopter distance of its New Jersey headquarters—puts the CEO in position for follow-on meetings as insurers assess Mythos’ impact on policy conditions and pricing, an issue Greenberg himself said was “on our minds” as an underwriter.