Also, note that the specific serial key they mentioned (411091) might already be invalid or expired, so even if it works temporarily, it's not a sustainable solution. Emphasize the importance of using authorized methods.

I should start by recalling Freemake's business model. Freemake offers free video converters with some watermarks or ads, and maybe a pro version that requires a license. Their website probably sells licenses for the premium version. If that's the case, any serial key provided outside their official site might be unauthorized.

I need to structure the paper to cover the background of Freemake software, the legal and ethical considerations of using pirated keys, risks of cracked software, step-by-step for legal purchase, and alternative free tools. Also, emphasize support for developers by using legitimate means.