Claim: The NSA operation OpticNerve hacked into the webcams of random Yahoo users every five minutes.
Verdict: Partially True (60% confidence)
Explanation: According to The Guardian, the Optic Nerve program collected Yahoo webcam images in bulk, targeting 1.8 million users over a six-month period. However, the sources, including PBS and NPR, attribute the operation to the UK's GCHQ, not the NSA. The frequency of image collection every five minutes is not directly confirmed by the sources. Therefore, while the operation targeting Yahoo users is supported, the NSA's involvement and the specific frequency of collection remain unverified.