There's a reason why they say that 'the road to hell is paved with good intentions': often it's those with the best of intentions who will do you the worst harm. You will recognise them by the amount of time and effort they invest in showcasing their Moral Code that they want you to adopt but oddly enough have no actual examples of the good things they've done. This also applies to jobs and employers. Ask not whether your employer has won awards for being an 'investor in people,' whatever that means, but whether the people you have to work with on a daily basis have high standards of personal integrity. There's no such thing as 'institutional good intentions' or institutional bad intentions for that matter. The boilerplate of good intentions issued by employers these days in their fancy corporate policies has generally achieved new heights of preposterousness, almost as if the intention is simply to signal virtue rather than to convince anybody of the truth of their words.
The concept of job security has four completely different meanings:
Scholar, Writer, Friend