The NA62 experiment at CERN is a multi-purpose high-intensity kaon decay experiment. It has collected the world’s largest dataset of charged kaon decays in 2016–2018, leading to the first measurement of the branching ratio of the ultra-rare \(K^+ \rightarrow \pi ^+ \nu \overline {\nu }\) decay. This measurement provides evidence for the decay, which has been observed with a significance of \(3.4\sigma \) . The experiment also carries out a broad rare-decay and hidden-sector physics program. For instance, the \(K^+ \rightarrow \pi ^+ \nu \overline {\nu }\) results have been used to set limits on BR( \(K^+ \rightarrow \pi ^+ X\) ), where X is a scalar or pseudo-scalar particle. Moreover, a search for hidden-sector mediators in the \(K^+ \rightarrow \pi ^+ e^+ e^+ e^- e^-\) channel has recently been performed. Recent results also include searches for violation of lepton flavor and lepton number, e.g., through the \(K^+ \rightarrow \mu ^- \nu e^+ e^+\) channel. Since 2021, NA62 can be run as a beam-dump experiment, which allows for searches for visible decays of exotic mediators, such as a rather massive dark photon, to be performed.