During crises and disasters, such as hurricanes, terrorist threats, or pandemics, policymakers must often increase security at the cost of freedom. Psychological science, however, has shown that the restriction of freedom may have strong negative consequences for behavior and health. We suggest that psychology can inform policy both by elucidating some negative consequences of lost freedom (e.g., depression or behavioral reactance) and by revealing strategies to address them. We propose four interlocking principles that can help policymakers restore the freedom–security balance. Careful consideration of the psychology of freedom can help policymakers develop policies that most effectively promote public health, safety, and well-being when crises and disasters strike.