I get people thinking this is scaremongering and I do think there's definitely an element of this in the media.
However, there does seem to be stronger indications in the media now that Russia attacking NATO is edging closer to 'when' rather than 'if'.
This article is from the DM, otoh the person discussing would be expected to hopefully know something about the situation:
https://www.dailymail.co.uk/news/article-15383455/dangerous-situation-Defence-chief-speech-Putin.html
Britain's military chief will warn on Monday that the nation is facing the most 'dangerous time' he has known during his career.
As the threat from Russia grows, Chief of the Defence Staff Sir Richard Knighton will say the whole country needs to 'step up' to stave off Vladimir Putin's aggression.
Following concerns about the danger posed by Russia to Nato, Sir Richard will make the case for a society-wide approach to 'defence and deterrence'. He will call on civilians to help build national resilience to ensure the UK functions in a crisis.
In a speech at the Royal United Services Institute in Whitehall on Monday, he is expected to say: 'Our Armed Forces always need to be ready to fight and win – that's why readiness is such a priority.
'But deterrence is also about our resilience to these threats... how we harness all our national power, from universities, to industry, the rail network to the NHS. It's about our defence and resilience being a higher national priority for all of us. An "all-in" mentality.
'That will require people who are not soldiers, sailors or aviators to nevertheless invest their skills, and money, in innovation and problem-solving on the nation's behalf.'
Sir Richard will warn that Russia's leadership has made its wish to 'challenge, limit, divide and ultimately destroy Nato' clear. On the threats faced by Britain, he will say: 'The situation is more dangerous than I have known during my career, and the response requires more than simply strengthening our Armed Forces.
I've got some better articles outlining the likely risks which I'll link in a minute.