Layer 2 Vulnerability

Definition ∞ A layer 2 vulnerability is a security flaw present in scaling solutions built atop a primary blockchain network. These solutions, designed to increase transaction speed and reduce costs, can introduce their own unique attack vectors. Exploiting these weaknesses can lead to the loss of funds locked within the layer 2 system or compromise its integrity.
Context ∞ The security of layer 2 solutions, such as rollups and state channels, is a persistent concern within the blockchain community. News frequently reports on potential vulnerabilities discovered in these scaling technologies, prompting audits and protocol upgrades. Discussions often revolve around the challenges of ensuring robust security guarantees that are at least as strong as the base layer they augment.