How do you know if security is OK?

We're launching a small DeFi project, and I've been told that it's better not to take risks without a blockchain audit - you can run into vulnerabilities. I've never encountered this before, so I'm looking for someone who can properly check everything before release.

Blockchain audits are no joke, especially when smart contracts and users' money are involved. Without a proper audit, you can easily catch a bug that will cost you a lot of money. I found information on blockchain audits, which describes how it all goes and what they look at - check out the link, you can also discuss the project there https://pharosproduction.com/blockchain-audit