https://www.techdirt.com/articles/20191211/16183743558/apple-filed-silly-questionable-dmca-notice-tweeted-iphone-encryption-key-before-backing-down.shtml

Copyright continues to serve its purpose as a tool for censorship, it seems. This week there was some hubbub over Apple's highly questionable decision to send a DMCA takedown notice over a tweet by a security researcher who goes by "Siguza," and who appeared to publish an iPhone encryption key on Twitter:

— Siguza (@s1guza) December 8, 2019