Important 4th Amendment private search doctrine opinion yesterday relating to the CyberTipline:

The Second Circuit has joined the Ninth Circuit in requiring human review by platform personnel before LE may warrantlessly open suspected CSAM files in a CyberTip, disagreeing with Fifth and Sixth Circuit decisions to the contrary that found a hash match sufficient. https://ww3.ca2.uscourts.gov/decisions/isysquery/8ef1a3e1-fc31-4bad-abcf-49e5e536e383/4/doc/23-6181_opn.pdf

The report I coauthored earlier this year discusses the circuit split on this issue: https://cyber.fsi.stanford.edu/io/news/cybertipline-report