How SMBs Can Block the Most Common Entry Points of Cyberattacks

managed cybersecurity experts

Today, cyberattacks are everywhere. It is no longer something that only large organizations worry about. In fact, small and medium-sized businesses (SMBs) are among the biggest targets for hackers right now. In the United States, more than 40% of cyberattacks target SMBs every year, and that number keeps growing. 

Attackers don’t care how small your business is. What matters to them is weak defenses. Sadly, many SMBs assume they are too small to be noticed, but the reality is different. Without basic protections, a single breach can shut a small business down in less than six months. Let’s explore how SMBs can block the most common cyberattack entry points.

Why Is Robust Cybersecurity Important for Modern Business?

Your business data, customers’ information, & your ability to operate depend on cybersecurity solutions. Here’s why strong cybersecurity is vital for every business:

High Attack Rate: Nearly half of SMBs in the U.S. have faced a cyberattack in recent years. 

Financial Risk: The cost of a cyberattack can run into tens or hundreds of thousands of dollars. 

Business Survival: Around 60% of small businesses close within six months of a serious cyberattack. 

Reputation Damage: Customers often stop doing business with companies after a breach. 

These numbers show a clear truth: cybersecurity isn’t just tech talk. It’s business survival.

Common Entry Points of Cyberattacks That SMBs Need to Block

Attackers look for the easiest way in. Below are the most common weak spots and how you can block them.

1. Phishing Emails (The #1 Entry Point)

Phishing is by far the most widespread threat. Hackers send fake emails that look real. These messages trick users into clicking links, opening attachments, or sharing login information. Phishing is the most common attack vector for SMBs that leads to credential theft or malware.

How to Block Phishing?

  • Train employees to spot suspicious emails.
  • Leverage advanced email filters to catch malware & spoofing.
  • Test staff with simulated phishing exercises regularly.
  • Training & filters significantly reduce phishing success. 

2. Compromised Credentials (Weak/Reused Passwords)

Weak or reused passwords create a huge risk for cyberattacks. Many breaches start because attackers guessed or stole login details. Many small businesses still rely on simple passwords. Compromised credentials fuel larger breaches.

How to Block It?

  • Require strong, unique passwords across accounts.
  • Use a password manager to help employees keep track.
  • Enforce Multi-Factor Authentication (MFA) on every system.
  • Strong password policies cut risk dramatically and make it harder for hackers to break in.

3. Unpatched or Legacy Software

Old software often has known weaknesses. Hackers know where to look & how to exploit them. Unpatched systems give attackers a direct entry point into your network.

How to Block It?

  • Install security updates as soon as they’re released.
  • Remove or replace legacy software that is no longer supported.
  • Enable automatic updates where possible.
  • Keeping systems up to date is one of the simplest yet most effective defenses.

4. Remote Desktop Protocol (RDP) & VPN Vulnerabilities

Remote work tools like RDP and VPNs are useful, but they can also be gateways for attackers. In fact, many ransomware attacks start with compromised RDP or VPN access. 

How to Block It?

  • Disable unused RDP ports.
  • Restrict remote access to trusted IPs only.
  • Protect VPN access with strong passwords and MFA.
  • Monitor remote access logs for signs of unusual activity.
  • Configure these systems carefully or consider safer alternatives such as zero-trust networking.

5. Third-Party Vendor Access (Supply Chain)

Your business doesn’t operate alone. Vendors, partners, and apps all connect to your systems. But each external connection is a potential risk. Many breaches start not with your systems but through someone you work with. 

How to Block It?

  • Evaluate vendor security practices before you work with them.
  • Limit what systems vendors can access.
  • Update and review vendor access regularly.
  • Require vendors to meet your cybersecurity standards.
  • Treat third parties as part of your attack surface, not separate from it.

6. Unsecured IoT Devices

Smart devices like printers, cameras, or sensors often lack robust security. Unsecured IoT devices are easy for attackers to exploit as backdoors into your network.

How to Block It?

  • Put IoT devices on separate networks.
  • Change default passwords immediately.
  • Update firmware regularly.
  • Every connected device should be treated like a potential risk.

7. Human Error & Social Engineering

This is the toughest challenge because humans are unpredictable. Studies show that 95% of cybersecurity incidents are linked to human error. Attackers use social engineering, manipulation, or distraction to trick people, not software.

How to Block It?

  • Conduct regular cybersecurity training.
  • Teach employees to think twice before clicking.
  • Simulate real-world attacks to keep skills sharp.
  • Build a culture where questions are encouraged.

Quick-Win Cybersecurity Checklist for SMBs

Here are immediate steps SMBs can take to improve defenses:

Consider Managed Cybersecurity Services

Managed security providers bring expertise that small businesses often lack. They watch your systems around the clock and respond to threats before they escalate.

Enable MFA Everywhere

Multi-factor authentication blocks many common hacks, especially those involving stolen credentials.

Back Up Data

Regular backups mean you can recover even if ransomware hits. Keep backups offline or in secure cloud storage.

Update Software

Never skip patches. Automatic updates keep your systems protected against known threats.

Train Your Staff

The best tools can still fail if employees aren’t trained. Regular, engaging training builds smarter teams.

How Managed IT Services Help Protect Your Business

Partnering with a managed IT company means having your own cybersecurity team without hiring in-house staff. The specialists help with monitoring threats 24/7, managing updates and patches, responding to attacks instantly, and providing strategic cybersecurity training. They perform regular audits and risk assessments to identify the weak points before a hacker finds them. This kind of expertise can be out of reach for SMBs, but professionally managed IT services make it cost-effective & worry-free.

Where to Get the Best Managed IT Services in the USA?

If you’re looking for reliable cybersecurity protection, panaTECH is one company worth considering. We offer robust managed cybersecurity services designed for SMBs or all kinds of businesses. Our experts focus on protecting your critical data, monitoring threats, and responding quickly when issues arise.

Whether you need daily security monitoring or multi-layered defense strategies, panaTECH helps make cybersecurity simpler and stronger for your business.

Conclusion

Cyberattacks are now a daily reality. Small businesses are especially vulnerable, not because they are unimportant but because attackers know they often lack strong defenses.

The good news? Most common entry points can be blocked with smart and affordable practices. From training your team to use strong passwords and partnering with managed cybersecurity experts, your business can be secure. Invest in cybersecurity now!

Frequently Asked Questions

What is the most common cyberattack on small businesses?

Phishing emails are often the most common and damaging way attackers get in.

Will employee training really help prevent cyberattacks?

Yes. Training reduces human error, which plays a role in most successful attacks.

What is multi-factor authentication (MFA)?

MFA adds an extra step to login, like a code or confirmation on your phone. This makes it much harder for attackers to access accounts without permission.

How often should SMBs back up data?

Ideally daily, depending on how often your data changes. Regular backups ensure you can restore systems if an attack occurs.


Picture of Brian Collins

Brian Collins

President of Marketing & Business Development, Panacea Smart Solutions

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