Where do I download serum?

Excuse me, could you please clarify where one might go to download Serum? I've been hearing about it in the crypto and finance circles, but I'm not entirely sure of the proper steps to acquire it. Is there a specific website or platform that hosts the software, or is it perhaps available through a decentralized exchange? Additionally, could you provide any insights into the security measures one should take when downloading and installing Serum, to ensure that the process is both SAFE and secure? Thank you in advance for your assistance.