How to claim free airdrops?

Could you please elaborate on the process of claiming free airdrops? I'm particularly interested in understanding the steps involved, such as whether I need to hold a certain cryptocurrency in my wallet, or complete specific tasks on a particular platform. Also, is there a limit to the amount of airdrops I can claim, and how often can I participate in these kinds of offers? Finally, how can I ensure the safety of my funds and personal information while engaging in this activity? Thank you for your assistance.