What Is a DDoS Attack and How Can You Protect Your Business in 2025?

A DDoS (Distributed Denial of Service) attack is a type of cyber attack where malicious actors flood a business’s network, server, or online service with an overwhelming amount of traffic from multiple computers, creating a denial of service condition. This attack traffic comes from a distributed network of connected devices, often part of a botnet, making it difficult to trace and block.

In essence, it’s like a traffic jam clogging up a highway, preventing legitimate traffic and users from accessing a particular website or online service. This form of service attack disrupts the availability of systems and can bring down a target server or application.

These distributed denial attacks are increasingly sophisticated and dangerous. In 2025, with more businesses relying on cloud infrastructure and remote operations, even a brief disruption can result in lost revenue, reputational damage, and security breaches.

How DDoS Attacks Work

To launch DDoS attacks, cybercriminals typically use a botnet, a network of hijacked devices, to direct massive amounts of attack traffic toward a target machine or service.

Here’s how a denial of service DDoS attack typically unfolds:

1. Device Infection: Malware infects thousands of vulnerable devices globally.
2. Botnet Formation: These devices are controlled remotely without the owners’ knowledge.
3. Command Execution: The attacker spoofs connection requests and commands the botnet to flood a particular network or web server with traffic.
4. Service Disruption: The influx overwhelms network resources, causing downtime.

The result? The intended target becomes unreachable, legitimate requests are blocked, and users experience total service interruption.

Types of DDoS Attacks

Understanding the types of DDoS attacks helps you better defend against them:

1. Volume-Based Attacks

These are the most common forms of volumetric attacks and rely on high volumes of bogus calls and packets to clog bandwidth. By overwhelming a target’s infrastructure with sheer volume, these attacks aim to exhaust all available bandwidth and make services completely unreachable. Businesses with limited bandwidth or outdated infrastructure are especially vulnerable to large-scale DDoS attacks.

These often target DNS servers and attempt to prevent DNS name lookup requests from resolving properly.

2. Protocol Attacks

These exploit vulnerabilities in network protocols to consume server resources. Known as network layer attacks, they focus on the mechanics of communication protocols, causing devices like firewalls and load balancers to crash. These denial of service attacks are highly disruptive because they consume infrastructure-level resources before a web application can even respond.

A common example is the SYN flood, where incomplete connection requests overwhelm the network administrator’s resources.

3. Application Layer Attacks

Application layer DDoS attacks target web applications by mimicking legitimate traffic and user behavior, making them harder to detect. They typically aim at resource-heavy features such as login pages or search functions, overwhelming them with HTTP requests and connection attempts.

Because they resemble normal user activity, these more complex attacks require deep-packet inspection and behavioral security tools to effectively mitigate.

Attack Type	Network Layer	Symptoms
Volume-Based	Layer 3	Sluggish website, timeouts
Protocol	Layer 4	Connection failures
Application Layer	Layer 7	Site crashes, login issues

Why DDoS Attacks Are Evolving in 2025

Modern attackers are leveraging new tools, tactics, and technologies:

• IoT Vulnerabilities: More connected devices mean more entry points.
• Ransomware-as-a-Service (RaaS): Anyone can now launch DDoS attacks.
• AI-Augmented Attacks: Artificial intelligence enables attackers to adapt in real-time to defense techniques.

According to Cloudflare, the average denial of service attack in late 2024 lasted under 30 minutes but generated up to 1.6 Tbps in data, enough to disrupt even the most robust online service.

The Real Impact on Your Business

A DDoS attack isn’t just a technical issue; it’s a business continuity crisis. Here’s what’s at stake:

• Downtime Costs: Lost productivity, missed sales, halted operations.
• Customer Trust: If users can’t access your online services, they may not return.
• Financial Losses: Attacks can lead to extortion, regulatory penalties, and long-term brand damage.

Quick Takeaway: A one-hour denial of service DDoS attack can cost a mid-sized business upwards of $20,000 in direct and indirect losses.

How to Identify a DDoS Attack

Early detection can reduce the damage. Watch for these red flags:

• Website or application becomes unusually slow or crashes repeatedly
• Unexplained spikes in incoming traffic
• Suspicious logs from security tools or endpoint devices
• Inaccessibility of your email or web services

Security Information and Event Management (SIEM) tools and managed monitoring services are critical for identifying and mitigating DDoS attacks early.

How to Protect Your Business From DDoS Attacks

Prevention starts with preparation. Here are key strategies to deploy a comprehensive defense strategy:

1. Use a Managed IT Service Provider (like Bastionpoint)

Professionals with 24/7 oversight, up-to-date knowledge, and response plans can dramatically reduce your risk and support real-time DDoS mitigation through managed IT services.

2. Implement Cloud-Based DDoS Protection Tools

Use a DDoS protection solution such as AWS Shield, Azure DDoS Protection, or Cloudflare to filter malicious traffic before it reaches your target server.

3. Deploy Layered Security

Start by implementing robust firewalls to block illegitimate traffic. Use Web Application Firewalls (WAFs) to protect against application layer attacks. Integrate rate limiting and anomaly detection tools to identify patterns of abuse and throttle traffic.

4. Create a DDoS Response Plan

Assign roles, define internal and external communication channels, list security vendors and law enforcement agencies to contact, and test the plan at least annually.

Checklist: 5 Steps to DDoS Preparedness

• Enable traffic monitoring and anomaly alerts
• Use DNS and CDN redundancies to absorb spikes
• Conduct a risk assessment for your network devices
• Secure IoT and BYOD connected devices
• Train staff on how to recognize and report signs of a DDoS attack

What to Do If You’re Under Attack

If a DDoS attack occurs:

• Contact your IT provider or security operations center.

• Alert your team and customers about potential service disruptions.

• Enable your DDoS protection solution to mitigate attack traffic.

• Capture logs and packet data for forensic analysis.

• Activate your business continuity and recovery plan.

Explore our Disaster Recovery Services for guidance on maintaining uptime!

Why Small and Midsize Businesses Are Prime Targets

Not all DDoS attacks are aimed at large corporations. SMBs are frequent targets due to limited network security, fewer defense layers, and outdated systems. The result is a higher risk of security breaches from even moderate DDoS botnets.

Explore our post on Why Every SMB Needs a Password Manager to reduce weak point exposure!

How Bastionpoint Protects You From DDoS Attacks

At Bastionpoint, we build a multi-layered defense strategy tailored to your risk profile:

• 24/7 Network Monitoring: We detect unusual patterns and spikes in traffic.
• DDoS Protection Solutions: Industry-leading tools to mitigate DDoS attacks quickly.
• Firewall and WAF Configuration: Harden your web server and DNS server against brute force and amplification attacks.
• Incident Response Planning: From network administrator protocols to law enforcement escalation, we ensure you’re never alone during a threat.

“Bastionpoint helped us recover from a denial of service attack with minimal disruption. Their defense techniques and response time were unmatched.” — Mike Irwin, Richmond, VA

Prevention Is the Best Protection

DDoS attacks in 2025 are more frequent, more complex, and more damaging than ever. Whether you’re protecting a particular website or a global cloud infrastructure, a proactive DDoS mitigation plan is essential.

Let Bastionpoint help you deploy the right tools, training, and expertise to protect your network and your business.

Ready to mitigate DDoS attacks before they strike? Get started with Bastionpoint today.