"The agency has not established a new system to properly annotate death information in its database, which included roughly 18.9m social security numbers of people born in 1920 or earlier but were not marked as deceased. This does not mean, however, that these individuals were receiving benefits.

The agency decided not to update the database because of the cost to do so, which would run upward of $9m."

https://www.theguardian.com/us-news/2025/feb/20/trump-social...