How safe is DAI?

Could you please enlighten me on the safety of DAI? Given its decentralized nature and the volatile world of cryptocurrencies, I'm quite curious to understand how secure it really is. With so many stories of hacks and scams in the crypto sphere, I'm cautious about investing in DAI. Could you explain the underlying mechanisms that ensure its stability and security? Also, are there any potential risks or vulnerabilities that investors should be aware of? I'm looking for a comprehensive yet concise overview of DAI's safety profile. Thank you for your insights.