From NASDAQ:

Spousal Social Security benefits are available to those married to a qualifying worker, even if they never worked themselves. When a worker dies, their retirement benefits stop, and spousal benefits transition to survivors benefits, potentially bringing in more monthly income. Survivors benefits can be worth up to 100% of the deceased worker’s benefit, with the amount varying based on factors like claiming age and caring for a child under 16. Remarrying before 60 may impact eligibility for survivors benefits, and contacting the Social Security Administration for specific details is recommended to maximize benefits.



Read more at NASDAQ: What Happens to Your Social Security Spousal Benefit if Your Spouse Dies?