SEAL Reports 60 Crypto Security Incidents as Protocol Attacks Cause $3.87 Million in Losses

SEAL Crypto Security Incidents Highlight Growing Risks Across the Industry

SEAL crypto security incidents have drawn renewed attention after Security Alliance reportedly recorded 60 incident reports during the week of November 4–11, 2026, highlighting the continuing financial and operational risks facing cryptocurrency platforms.

According to a report shared by Binance News, the nonprofit cybersecurity organization identified significant losses involving decentralized finance protocols, social engineering, infrastructure vulnerabilities, and phishing attacks.

Protocol-related attacks reportedly caused approximately $3.87 million in losses.

Social engineering incidents resulted in a further €3 million in reported losses, while infrastructure exploits and phishing attacks caused approximately $914,000 and $623,000, respectively.

The organization also reportedly collected 5,640 phishing domains and 105 suspicious wallet addresses.

Additionally, SEAL published 5,652 threat indicators that security teams could use to identify potentially malicious infrastructure.

These figures suggest that cryptocurrency attackers continue using multiple techniques rather than relying exclusively on smart-contract vulnerabilities.

However, the detailed November 4–11 dataset has not yet been independently verified against a corresponding public SEAL report.

The reported numbers should therefore be treated as attributed findings rather than a complete, independently audited accounting of cryptocurrency crime.

What Is Security Alliance (SEAL)?

Security Alliance, commonly known as SEAL, is a nonprofit organization focused on improving cybersecurity across the cryptocurrency ecosystem.

The organization brings together security researchers, blockchain specialists, incident responders, and other contributors.

Its work includes helping projects respond to attacks, investigating suspicious activity, and distributing threat intelligence.

SEAL also provides resources designed to help cryptocurrency businesses improve operational security.

One of its most important initiatives is SEAL 911, an emergency response network supporting organizations and individuals facing active security incidents.

Why SEAL's Reports Matter

Cryptocurrency security incidents are often investigated by different organizations.

A blockchain analytics company may track stolen assets.

A cybersecurity researcher may identify malicious software.

An exchange may investigate compromised accounts.

SEAL helps coordinate intelligence across these areas.

Its weekly reports provide insight into the different attack methods affecting the industry.

However, incident reports should not automatically be interpreted as unique confirmed hacks.

Some reports may involve attempted attacks, ongoing investigations, or related requests for assistance.

This distinction is important when comparing weekly statistics.

SEAL Reports $3.87 Million in Protocol Attack Losses

Protocol-related attacks reportedly caused approximately $3.87 million in losses during the latest reporting period.

These attacks can involve vulnerabilities in decentralized applications, smart contracts, financial protocols, or associated transaction systems.

DeFi platforms are particularly attractive targets because they may hold substantial amounts of cryptocurrency in publicly accessible smart contracts.

Unlike traditional financial applications, many DeFi protocols allow users to interact directly with smart contracts.

This creates opportunities for permissionless innovation.

However, it also means that vulnerable contract logic may be accessible to attackers.

How Protocol Attacks Happen

A protocol exploit can occur when an attacker identifies a weakness in how a blockchain application processes transactions.

For example, a lending platform may contain an error in its collateral calculations.

An attacker could potentially exploit that error to borrow more assets than intended.

Other incidents may involve faulty authorization rules, oracle manipulation, or weaknesses in cross-chain infrastructure.

However, the reported $3.87 million figure does not identify the individual protocols affected.

Without additional incident-level disclosures, it would be inappropriate to attribute those losses to specific projects.

Social Engineering Attacks Reportedly Cause €3 Million in Losses

Social engineering remains one of the most persistent threats in cryptocurrency.

According to the reported SEAL figures, these incidents caused approximately €3 million in losses during November 4–11.

Social engineering involves manipulating people into performing actions that compromise security.

Attackers may impersonate employees, recruiters, customer support representatives, or trusted business partners.

They may also create convincing websites or messages designed to obtain sensitive information.

Why Human Access Is a Major Security Target

Cryptocurrency companies often invest heavily in smart-contract audits.

However, an audited contract does not protect against every attack involving compromised employees or operational systems.

For example, attackers may persuade a developer to install malicious software.

They may then use the compromised device to access internal infrastructure.

Bitnxt previously covered the Binance security breach involving fake recruitment interviews and compromised internal systems.

That incident illustrates how an attack beginning with employee manipulation can develop into a much larger operational compromise.

It is separate from the incidents summarized in the latest SEAL figures and should not be counted as part of the reported €3 million without supporting evidence.

Infrastructure Exploits Cause $914,000 in Reported Losses

Infrastructure exploits reportedly accounted for approximately $914,000 in losses.

These attacks differ from vulnerabilities in blockchain smart contracts.

They may target cloud servers, application programming interfaces, employee credentials, signing systems, or software dependencies.

For example, a blockchain protocol might use secure smart contracts while relying on a vulnerable server to manage certain operational functions.

If an attacker compromises that server, the application could still be exposed.

Why Infrastructure Security Is Essential

A cryptocurrency platform consists of more than its blockchain contracts.

It may also depend on databases, cloud services, authentication systems, monitoring tools, and external software libraries.

Each component introduces potential risks.

Bitnxt recently examined the NEAR AI security breach involving an SGLang software vulnerability.

That incident exposed account information and legacy AI agent data without compromising the underlying NEAR blockchain.

Although it was not reported as a cryptocurrency theft, it demonstrates why protecting supporting infrastructure is essential.

The broader lesson is that blockchain security and application security must be evaluated separately.

Phishing Attacks Account for $623,000 in Losses

Phishing incidents reportedly caused approximately $623,000 in financial losses during the latest reporting period.

Phishing attacks attempt to trick users into revealing sensitive information or authorizing malicious transactions.

Cryptocurrency phishing often involves fake wallet interfaces, fraudulent token claims, impersonated support accounts, and malicious websites.

Some attacks are designed to obtain seed phrases.

Others encourage users to sign transactions that transfer assets to attacker-controlled addresses.

Why Crypto Phishing Is Particularly Dangerous

Cryptocurrency transfers can be difficult or impossible to reverse once confirmed.

An attacker who successfully obtains control of a wallet may be able to transfer assets quickly.

Recovery depends on factors such as the destination network, the involvement of centralized services, and whether stolen assets can be frozen.

However, there is no universal mechanism for reversing blockchain transactions.

This makes prevention especially important.

Users should verify websites, review wallet permissions, and avoid signing unfamiliar transactions.

SEAL Collects 5,640 Phishing Domains and 105 Wallet Addresses

Beyond tracking reported financial losses, SEAL also reportedly collected thousands of potential threat indicators.

The latest figures include 5,640 phishing domains and 105 wallet addresses.

These indicators can help security researchers identify infrastructure associated with suspicious activity.

What Are Threat Indicators?

Threat indicators, often called indicators of compromise or IOCs, are pieces of information that may help identify malicious activity.

They can include suspicious domain names, IP addresses, file hashes, and blockchain wallet addresses.

For example, a security team may discover that attackers are using a fake website designed to imitate a legitimate cryptocurrency exchange.

The domain can be shared with other security teams.

Those organizations may then block access to the website or warn users.

Similarly, wallet addresses associated with known malicious activity may help blockchain investigators trace transactions.

However, the collection of a wallet address does not automatically establish criminal ownership.

Threat intelligence requires context and appropriate validation.

Why 5,652 Published Indicators Matter

The report states that SEAL published 5,652 threat indicators.

These indicators could support security monitoring and investigations.

Their value depends on accuracy, distribution, and timely use.

A threat indicator identified after an attack may help prevent similar incidents elsewhere.

However, threat intelligence alone cannot guarantee protection.

Attackers frequently change domains, infrastructure, and wallet addresses.

Security systems therefore need to combine threat intelligence with monitoring and operational controls.

DNS Hijacking Emerges as a Continuing Crypto Security Threat

One of the most important warnings concerns domain name system hijacking.

DNS is the technology that connects human-readable website addresses with the servers hosting those websites.

When users enter a domain name, DNS helps direct their browsers to the appropriate destination.

Attackers who gain control of DNS settings may be able to redirect visitors to malicious infrastructure.

This can create serious risks for cryptocurrency platforms.

How DNS Hijacking Works

Consider a user attempting to access a legitimate decentralized finance application.

The user enters the correct website address.

However, an attacker has compromised the domain's DNS configuration.

The website may then direct the user to an attacker-controlled page.

That page could imitate the legitimate application and ask the user to connect a wallet.

The attacker might attempt to trick the user into approving a malicious transaction.

Importantly, the user may have entered the correct domain name.

This makes DNS hijacking different from ordinary phishing involving a visibly fake website address.

Why Domain Registrars Are Being Targeted

According to the reported SEAL warning, some DNS hijacking incidents are suspected to involve social engineering directed at registrar customer service employees.

Attackers may impersonate legitimate domain owners or authorized representatives.

If they convince support staff to change account details or domain settings, they could potentially gain control over a website's routing.

SEAL's earlier official reporting also documented registrar-level DNS hijacking affecting cryptocurrency protocols.

That independent reporting supports the broader concern, although it does not independently confirm the specific November 4–11 incident count.

How Crypto Platforms Can Reduce DNS Hijacking Risks

Protecting a cryptocurrency application requires more than securing its smart contracts.

Domain registration and DNS management should be treated as critical infrastructure.

Organizations can reduce risk through stronger registrar account security, restricted administrative access, and monitoring of DNS changes.

Registry lock services can provide additional protection against unauthorized domain changes where supported.

DNSSEC can help authenticate DNS responses, although it does not prevent every form of registrar account compromise.

Security teams should also review the processes used to approve sensitive domain changes.

A request to transfer or modify a domain should require appropriate verification.

Independent monitoring can help identify unexpected changes before they affect large numbers of users.

How the Latest SEAL Figures Compare With the Previous Week

SEAL's publicly available report for October 28–November 3, 2026, recorded 99 incident reports.

That report identified approximately $57 million in protocol-related losses, excluding the separately disclosed Binance incident.

It also reported $3.62 million in seed-compromise losses and $2.19 million in infrastructure-exploit losses.

The earlier report included 5,137 phishing domains, 169 wallet addresses, and 5,185 published indicators.

Weekly Security Comparison

The first column comes from SEAL's published weekly report. The second comes from the Binance News summary.

The reporting periods and category definitions may not be identical.

Therefore, these figures should not be used to calculate a definitive week-over-week change in cryptocurrency crime.

Nevertheless, the comparison suggests that security teams continue handling substantial numbers of incidents even when the value of reported protocol losses varies significantly.

Why Weekly Crypto Losses Can Change Dramatically

Cryptocurrency security losses are often concentrated in a relatively small number of major incidents.

One large exploit can dominate a weekly report.

For example, a single protocol breach involving tens of millions of dollars may exceed the combined losses from many smaller attacks.

This makes weekly totals volatile.

A reduction in reported financial losses does not necessarily mean attackers have become less active.

Similarly, a week with more incident reports does not automatically indicate a greater total financial impact.

Incident frequency and financial severity measure different aspects of cybersecurity risk.

This is why investors and security researchers should examine attack methods alongside financial totals.

What the Report Means for DeFi Projects

Decentralized finance platforms face multiple security challenges.

Smart-contract vulnerabilities remain important.

However, operational security is increasingly relevant.

A platform may use audited contracts while relying on vulnerable domain infrastructure, employee devices, or cloud services.

Attackers can exploit those weaknesses without breaking the underlying blockchain.

Security Must Cover the Entire Platform

A comprehensive security strategy should include contract audits, infrastructure monitoring, access controls, incident response planning, and employee security training.

Organizations should also consider how quickly they can detect and contain suspicious activity.

Bitnxt previously reported on the Gnosis Pay data breach affecting its legacy consumer card infrastructure.

The incident illustrates how older operational systems can expose sensitive customer information even when the core financial infrastructure remains unaffected.

It reinforces the importance of regularly reviewing legacy services and third-party dependencies.

Bitnxt Take: Crypto Security Is No Longer Just a Smart-Contract Problem

At Bitnxt, we believe the latest SEAL figures highlight an important shift in cryptocurrency cybersecurity.

The industry has historically focused heavily on smart-contract vulnerabilities.

That attention is justified because vulnerable contracts can expose substantial financial assets.

However, the reported incidents demonstrate that attackers also target people, websites, servers, and operational infrastructure.

Social engineering, phishing, and DNS hijacking can undermine projects without requiring a sophisticated blockchain exploit.

This means cryptocurrency security should be evaluated across the entire technology stack.

The Most Important Lesson From SEAL's Findings

We believe the most concerning trend is the continued targeting of systems that users naturally trust.

A legitimate-looking website may have been redirected.

A customer support representative may be impersonated.

An employee may receive a malicious recruitment invitation.

A software dependency may contain a vulnerability.

In each case, the attacker attempts to exploit an existing relationship of trust.

Bitnxt's assessment is that cryptocurrency platforms must treat operational security, employee verification, and domain protection as seriously as smart-contract auditing.

A project can invest heavily in blockchain security and still remain vulnerable through its surrounding infrastructure.

Why Threat Intelligence Matters

We also believe SEAL's threat-intelligence work deserves attention.

Collecting suspicious domains, wallet addresses, and other indicators can help security teams respond more quickly.

However, threat intelligence is most valuable when organizations act on it.

Security information must reach the teams responsible for monitoring systems, reviewing suspicious transactions, and responding to incidents.

The industry would benefit from stronger coordination between blockchain developers, exchanges, security researchers, and domain infrastructure providers.

What Should Cryptocurrency Users Do to Stay Safe?

The report also offers lessons for individual cryptocurrency users.

Users should avoid relying exclusively on website appearance when evaluating a service.

They should verify official announcements and be cautious about unexpected wallet connection requests.

Hardware wallets can help protect signing keys, but users must still carefully review the transactions they approve.

Strong account authentication and updated software can reduce some common risks.

Users should also be skeptical of unsolicited messages from people claiming to represent exchanges, wallet providers, or technical support teams.

Legitimate support staff should not require users to disclose wallet seed phrases or private keys.

Finally, investors should remember that even established cryptocurrency platforms can experience security incidents.

Using a well-known service does not eliminate operational or custody risk.

What Happens Next for Crypto Security?

Several developments will be important in the coming months.

Security researchers will continue monitoring phishing infrastructure and suspicious wallet activity.

Cryptocurrency projects may face growing pressure to improve operational security standards.

Domain registrars could also become a more prominent part of the industry's cybersecurity discussions.

As blockchain applications become more complex, developers will need to evaluate the security of external services and software dependencies.

Incident response coordination will remain essential.

The ability to identify malicious activity quickly, communicate with affected users, and coordinate with relevant infrastructure providers can influence the outcome of an attack.

However, no single security measure can eliminate every threat.

Effective protection requires multiple independent safeguards.

Final Thoughts

Security Alliance reportedly received 60 cryptocurrency security incident reports during November 4–11, 2026.

Protocol-related attacks accounted for approximately $3.87 million in reported losses, while social engineering, infrastructure exploits, and phishing continued causing financial damage.

The organization also reportedly collected 5,640 phishing domains, 105 wallet addresses, and published 5,652 threat indicators.

The figures highlight the variety of risks affecting cryptocurrency platforms and users.

However, the specific November 4–11 dataset still requires confirmation against SEAL's primary reporting.

The broader security concern is independently supported by SEAL's earlier research, which documented protocol exploits, compromised infrastructure, phishing campaigns, and registrar-level DNS hijacking.

Bitnxt believes the cryptocurrency industry's next major security improvements must extend beyond blockchain code to protect the people, applications, domains, and operational systems that make decentralized finance possible.

Preventing financial losses will require stronger security controls, faster incident response, and more effective cooperation across the industry.