[zepto]

How would the law define ‘support ends’?

Also seizing source code at gunpoint seems antithetical to the notion of free software.

[fsflover]

This is the question of security, see https://news.ycombinator.com/item?id=27387169.

> How would the law define ‘support ends’?

Whenever the company refuses to fix security bugs.

[zepto]

What if they don’t refuse - but are just slow or inefficient or produce bad fixes?

[fsflover]

There exist more or less standard times for fixing security bugs. Let's say 90 days. If a company cannot provide security for their customers in a reasonable time, they must be held accountable.

[zepto]

Sure - typically the remedy for negligence would be compensation for the impact.

Seizing property at gunpoint doesn’t seem related to this.