2-group symmetries arise in physics when a 0-form symmetry $G^{[0]}$ and 1-form $H^{[1]}$ intertwine, forming generalised group-like structure. Specialising to the case where both are compact, connected, abelian groups (i.e. tori), we analyse anomalies such `toric symmetries' using cobordism classification. As warm up example, use study various 't Hooft (and phases which they dual) Maxwell theo...
