Abstract: We will discuss the structure and universal nature of measurement and control (or feedback) induced phase transitions in monitored random quantum circuits. First, the properties of the underlying conformal field theory at the measurement induced transition are studied allowing us to identify 3 distinct universality classes, depending on the quantum nature of the gates. Second, using post selection and feedback we identify a control induced phase transition that is concomitant with an entanglement transition but lies in a diffusive, and hence distinct, universality class. Importantly, this transition is witnessed in quantities that are linear in the density matrix and therefore are experimentally accessible without exponentially large (in the number of qubits) resources. Last, we show how to “pull apart” the control and measurement driven transitions, which allows us to discuss the general structure of phase diagrams of observer driven transitions.