That's why it's being investigated now. And fairly.
If it was genuinely for security, then why not declare it? I'm sad to be so suspicious but him dropping this into a conversation with a victim slant makes me think they were aware it was about to be made public and were trying to get ahead of the story.
Under the rules he needed to declare it:
House of Commons - The Code of Conduct together with The Guide to the Rules relating to the Conduct of Members - House of Commons - The Code of Conduct
"The House requires new Members, within one month of their election, to register all their current financial interests, and any registrable benefits (other than earnings) received in the 12 months before their election."
Farage appears to be arguing this both ways. That he was attacked because of his work, in a way he didn't make public at the time, (despite making a very big deal about milkshakes) but that he didn't need to declare it because he wasn't an MP, even though you do need to declare anything from 12 months before you became an MP. Also hard to suggest it's unlinked to politics when the donor was someone who has separately donated to Reform.
It's BS. From an utter grifter.
ZP and NF aren't quite as bad as each other but not far off. But NF has repeatedly failed to turn up to actually be a politician both as an MEP and now MP and found multiple side hustles for money. I think that's absolutely right to face scrutiny. Don't you?
It's unlikely he's going to face anything worse than having to make an apology (seeing as our rules are so weak) but for someone who is looking for more power in public office, it seems a strange thing for people to be finding ways to excuse it. It speaks, I believe, to his character.