In January 2020, Check Point Research discovered a security flaw in TikTok which could have allowed hackers access to user accounts using SMS.[170] In February, Reddit CEO Steve Huffman criticised the app, calling it "spyware," and stating "I look at that app as so fundamentally parasitic, that it's always listening, the fingerprinting technology they use is truly terrifying, and I could not bring myself to install an app like that on my phone."[171][172] Responding to Huffman's comments, TikTok stated "These are baseless accusations made without a shred of evidence."[4] Wells Fargo banned the app from its devices due to privacy and security concerns.[173]