Definition ∞ Proof of Stake (PoS) economic security refers to the robustness of a PoS blockchain network against attacks, derived from the financial incentives and penalties associated with staking. Validators commit their capital (stake) to secure the network, and their honest behavior is rewarded, while malicious actions lead to the loss of their staked assets (slashing). This economic mechanism makes attacking the network prohibitively expensive, aligning validator interests with network integrity. It is a fundamental security model.
Context ∞ PoS economic security is a central topic in crypto news, particularly with the transition of major blockchains to PoS or the launch of new PoS networks. Discussions often involve the effectiveness of slashing mechanisms, the distribution of staked capital, and the overall cost to attack the network. Analyzing these factors helps assess the long-term viability and trustworthiness of PoS-based digital assets.