
World's first: BlockSec launches hacker attack prevention platform Phalcon Block
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World's first: BlockSec launches hacker attack prevention platform Phalcon Block
Phalcon Block solves all security concerns in protocol deployment and operation with a single platform.
BlockSec has launched Phalcon Block, the world's first automated platform to block hacker attacks in Web3, fundamentally changing the "battlefield" between the Web3 world and hackers.

What is Phalcon Block?
Protocol security involves multiple stages:
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Pre-launch: includes smart contract audits and security testing;
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Post-launch: includes continuous monitoring, attack blocking, and incident response.

Phalcon Block provides a comprehensive post-launch protocol security solution integrating "protocol monitoring, attack blocking, and security response". Particularly in the area of "attack blocking", after two years of direct confrontations with hackers, BlockSec has developed a high-precision, fully automated attack-blocking system—the industry’s first security provider to propose and truly deliver this capability.
“This is undoubtedly a major breakthrough for the Web3 security industry. Protocol teams using our platform can intercept virtually all external attacks in real time,” said YaJin Zhou, Professor and Founder & CEO of BlockSec. “We’ve spent two years refining this system. Phalcon Block will completely change the 'battlefield' between Web3 and hackers.”
Statistics show that losses from hacker attacks have reached $7.3 billion, with $1.4 billion lost so far in 2023 alone. These include well-known, trusted projects like Curve and rising stars like Friend.tech. With the launch of Phalcon Block, this situation will be reversed.
Who Does Phalcon Block Protect?
If you are a protocol team, how do you ensure the safety of your TVL? If you're an LP (liquidity provider), how can you exit immediately when a protocol suffers an attack or anomaly? If you're a DAO or foundation, how do you secure your treasury? If you're a fund manager holding multiple tokens, how can you quickly sell off during extreme events? If you're an exchange, how can you adjust trading prices or prevent hacker withdrawals in time?
Phalcon Block solves all these problems.

For protocol teams, the higher the TVL, the more attractive it becomes to hackers—and the greater the risk. Attacks may stem from contract upgrades or bug fixes, changes in dependent protocols, reconfigurations of parameters, or even oversights in compiler behavior. The recent Curve incident was a painful example.
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How to accurately detect attacks and avoid false positives or negatives that disrupt protocol operations?
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How to respond automatically and effectively to attacks regardless of their origin?
These are exactly the values Phalcon Block delivers.
For LPs (liquidity providers), protocol security matters even more—while protocols lose TVL, LPs lose their own capital. If the Silicon Valley Bank collapse revealed the fragility of traditional finance, such events occur almost monthly in DeFi.
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How to know instantly when a protocol you've deposited into is attacked and withdraw funds immediately?
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How to combine other financial indicators to set up customized automated response strategies?
These are exactly the values Phalcon Block delivers.
Likewise, well-funded exchanges and fund managers can also use Phalcon Block to avoid losses from extreme events.
Core Technology Advantages
Many organizations may already have built or purchased multiple alert systems, yet still suffer losses. There are two main reasons:
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Low alert precision: After several false alarms ("wolf cries"), people stop taking the system seriously. When a real attack comes, there's no time to react;
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Manual response is too slow! Due to governance rules, many protocols require multi-sig approvals for critical actions. But hacker attacks happen within one block—there’s simply no time to verify alerts, hold discussions, and manually respond to imminent threats.
Therefore, many alert systems appear useful but fail to solve real-world problems.
Phalcon Block is designed and implemented based on first principles, automating the entire process from attack detection, judgment, to interception. Just three simple steps are required to deploy the monitoring and blocking system. 👇🏻

Phalcon Block offers three core capabilities:
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High-Precision Attack Detection: As soon as an attack transaction enters the Pending state, Phalcon Block detects it—eliminating false alarms to avoid unnecessary disruptions while ensuring full coverage so no attack slips through. Although Phalcon Block launches today, this intelligence system has been running internally at BlockSec for two years, consistently ranking #1 in accuracy on Forta, and powering many public Twitter detection alerts.
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Automated Attack Interception: Once an attack is confirmed, the system automatically executes defensive transactions—including pausing, frontrunning, withdrawing, and other composable blocking actions—without human intervention.
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Composable, Customizable Response Mechanisms: Since attack impacts vary, protocol teams can add financial or business metrics to define custom trigger conditions and responses. Phalcon Block can also provide recommended response strategies.
Phalcon Block solves all security concerns for protocols during live operation—with a single platform.
Proven in Real-World Combat
BlockSec’s attack-blocking system has been under development and internal operation for two years. During this period, it successfully prevented over twenty attack attempts, helping protocols recover more than $14 million in digital assets. It is the only security firm on the market with proven, repeated success in attack prevention.
Moreover, BlockSec actively collaborates with affected projects to identify root causes, assist in vulnerability patching, trace hacker fund flows, and support asset recovery efforts.
Each real-world engagement makes BlockSec’s defense system stronger and more resilient.
Start Using Now
Since opening its Waitlist in July, Phalcon Block has gathered thousands of sales leads, been featured by numerous media outlets and research firms, and presented at multiple international Web3 conferences.
If you’ve already joined the Waitlist, BlockSec representatives will contact you shortly. If you’re interested in Phalcon Block, feel free to book a demo on our website—we serve requests in order of registration. 🤝
Book a product demo: https://phalcon.xyz/bookDemo
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