Graph Crimes of the Temporal Kind: How LoReTTA Quietly Breaks Time
Opening — Why this matters now Temporal Graph Neural Networks (TGNNs) are quietly making decisions in places you’d rather not imagine a fragile model: fraud detection pipelines, outbreak surveillance, content‑ranking engines, even transportation forecasts. As relationships shift second by second, TGNNs help systems make sense of who interacts with whom, when, and why. This also means one uncomfortable truth: if you can tamper with the history a TGNN learns from—even slightly—you can distort its future predictions dramatically. The new LoReTTA attack framework shows just how easy, cheap, and quiet such tampering can be. ...