How can businesses protect their network from intrusions?

By Ludo Fourrage

Last Updated: April 9th 2024

Image showing a business implementing network security solutions to protect from network intrusions

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Businesses must shield their network from intrusions to prevent substantial financial losses and reputational damage. Various attack types, like DoS and phishing, threaten data security. Implementing robust security measures, such as IDS and firewalls, is crucial. Network security solutions can reduce breach incidents by up to 70%.

Check it! Network hacks—when shady dudes break into business systems—ain't just annoying; they expose the company's sensitive underbelly, costing them big bucks and damaging their rep.

As TechTarget puts it, by messing with data integrity, privacy, and service availability, network security is the bouncer keeping those nasty cyber threats at bay.

We're talking advanced persistent threats, malware, phishing scams—any of that crap can cause chaos, like IBM's estimate of $3.86 million for the average data breach in 2020.

And these attack methods keep evolving, so businesses gotta stay on their toes with some slick defensive moves. Cybersecurity Ventures reckons global costs could hit $6 trillion by 2021, leaving a trail of lost customer trust and harsh penalties.

businesses' personal info got jacked. That's why business network security is crucial, keeping companies aware and armed against cyber crooks, protecting them in the ever-changing digital landscape.

Table of Contents

  • Common Types of Network Intrusions
  • How Intrusions Impact Businesses
  • Steps to Protect a Network
  • Implementing Network Security Solutions
  • Frequently Asked Questions

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Common Types of Network Intrusions


Network hackers ain't playing no games these days. They're out there trying to mess with your company's data and operations, using all kinds of sneaky tricks.

One of the big ones is called a Denial-of-Service (DoS) attack, where they basically flood your network with so much traffic that it crashes.

According to some survey, these attacks have gone up by 20% in just the last year, which is insane.

But that's not all. Phishing is still a huge problem, where these scammers try to trick people into giving up their login info and sensitive data.

It's crazy, but phishing is responsible for 90% of all data breaches, based on some report.

  • There's also this thing called SQL Injection Attacks, where hackers can mess with your databases and steal data by exploiting weaknesses in website user inputs. Sneaky AF.
  • Then you've got Man-in-the-Middle (MitM) Attacks, where they basically intercept communications between two systems and steal info. These attacks have gone up by 27% since 2020, often targeting network protocols and stuff.
  • And let's not forget Ransomware, where they lock up your data and demand money to unlock it. Cybersecurity experts say a business will get hit with ransomware every 11 seconds by 2023. Talk about a nightmare!

The key is being able to spot these intrusions before they wreak havoc.

You need solid network monitoring tools and alert systems to catch any sketchy network traffic that could signal a breach. Hackers love to exploit weak passwords, outdated software, and unsecured devices to get in.

Remember the WannaCry ransomware attack? That thing hit over 200,000 computers across 150 countries just by targeting Windows vulnerabilities.

Bottom line, these attacks are no joke.

They happen all the time and can seriously mess up your business, your customers' trust, and your whole operation. So you better have some serious Intrusion Detection Systems (IDS) in place, like Network IDS (NIDS) or Host IDS (HIDS), to catch these hacker moves in real-time and shut 'em down.

It's not an option anymore, it's a must-have if you want to keep your business safe in this digital age.

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How Intrusions Impact Businesses


Network attacks are no joke, and they can mess up your business big time. Remember those massive DDoS attacks on Google and AWS a couple of years back? That's the kind of chaos we're talking about.

And it's not just about some website going down – these attacks can cost companies millions of dollars per hour in downtime costs. According to the UK government, the average cost of a cyber attack is around £1,100 for small businesses and a whopping £4,960 for bigger ones.

That's some serious cash. But it gets worse. Besides the immediate costs of investigating and fixing the mess, businesses also have to deal with legal fees, fines for not following the rules, and the hassle of notifying customers.

And it can take companies an average of 287 days to even detect and contain the attack – that's a long time to be vulnerable. Plus, there's the long-term damage to your reputation, with businesses typically losing around 7% of their customers after a breach.

However, there's hope. Some places, like Livingston County in Michigan, have figured out how to bounce back from ransomware attacks with solid recovery plans.

To stay safe, businesses need to invest in three things: proactive defenses, strategies to mitigate the damage, and recovery plans that cover everything from stolen data to operational disruptions and fines.

As one expert puts it, "The compounding effects of network intrusions underscore the critical need for robust cybersecurity measures to preserve both the integrity and continuity of business operations."

Steps to Protect a Network


Network security is a big deal these days. With all the cyber attacks happening, it can seriously mess up a company's business. You need to have multiple layers of security, and it all starts with following the cybersecurity best practices recommended by the Cybersecurity and Infrastructure Security Agency (CISA).

They advise using firewalls and intrusion detection systems (IDS) to monitor and control network traffic. Firewalls are like bouncers, they decide what traffic gets in based on the security rules.

IDS systems are like surveillance cameras, they keep an eye out for any suspicious activity. This is important because according to Verizon's 2021 Data Breach Investigations Report, 36% of breaches involve exploiting vulnerabilities in network infrastructure.

CISA also recommends the basics like using strong passwords, updating software regularly, not clicking on sketchy links, and enabling multi-factor authentication.

It's like locking your doors and windows at home, you gotta do it to keep the bad guys out.

The Federal Communications Commission (FCC) also has some solid advice.

They suggest creating a customized cybersecurity plan using tools like the Small Biz Cyber Planner 2.0 and following their cybersecurity tip sheet.

Encrypting your data is a must to keep sensitive info away from prying eyes. And software updates are crucial because 60% of breaches happened because a known vulnerability wasn't patched.

Companies should also limit user access to only what's necessary (least privilege access), regularly check for security holes through audits and penetration testing, keep their cybersecurity policies updated, and train their employees on cybersecurity awareness.

Social engineering attacks are a big threat, and employees need to be able to spot them. Proofpoint has some great network security management best practices that cover all this.

Studies by IBM and the Ponemon Institute show that companies with an incident response team and solid cybersecurity policies save a ton of money when data breaches happen.

So, by following these defensive measures, businesses can seriously beef up their network security and protect themselves from cyber attacks.

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Implementing Network Security Solutions


Check it out! Keeping your network secure is like putting a lock on your bedroom door - gotta protect your stuff from intruders, ya feel me? With all the hackers and cyber punks out there, businesses need to step up their game.

That's where network security solutions come in. They're like having a security guard watching your back 24/7.

But here's the real deal: you can't just rely on one solution.

Nah, that's too easy for those sneaky hackers. That's why you gotta have a layered security approach, like stacking up multiple locks on your door.

It's been proven to reduce the risk of network break-ins by up to 70%!

One of the big dogs in this game is the Network Intrusion Prevention System (NIPS).

Think of it as a bouncer at the club, monitoring and shutting down any sketchy activity. Small and Medium-sized Businesses (SMBs) can especially benefit from these cost-effective NIPS models.

According to the industry reports in 2023, they're slashing breach incidents by a whopping 60%!

Here are some other must-haves for locking down your network:

  • Next-Generation Firewalls (NGFWs) - These bad boys don't just block traffic, they inspect it too. They team up with threat intelligence services to sniff out any sketchy business, like Cisco's SMB security solutions.
  • Advanced Endpoint Protection - Using AI to predict and shut down zero-day exploits (those sneaky new attacks). With these types of attacks up 30% year over year, you gotta stay ahead of the game.
  • Multi-factor Authentication (MFA) - Basically, it's like having multiple locks on your account. Companies like Palo Alto Networks swear by this Zero Trust approach, blocking 99.9% of account hacks.
  • Cloud-based Security Solutions - With over 90% of businesses operating in the cloud now, you need security that can scale and update in real-time.

You gotta keep your network on lockdown with regular security audits, as discussed in Nucamp's article on how network security audits can benefit businesses.

And don't forget about employee training - it's been proven to reduce human error-related security incidents by 45%!

And last but not least, you need comprehensive policies and incident response plans.

That way, if something does go down, you can respond quickly and minimize the damage. As one cybersecurity pro puts it,

"Protecting a business network is an ongoing journey, requiring perpetual vigilance and adaptation to emerging threats."

By combining all these top-notch technologies and practices, businesses can lock down their networks against even the most persistent cyber threats.

Frequently Asked Questions


What are the common types of network intrusions?

Common types of network intrusions include Denial-of-Service (DoS) attacks, phishing, SQL Injection Attacks, Man-in-the-Middle (MitM) Attacks, and Ransomware.

How do network intrusions impact businesses?

Network intrusions can undermine a business's financial standing, disrupt operations, lead to significant financial costs, legal fees, compliance penalties, and tarnish the company's reputation.

What steps can a business take to protect its network from intrusions?

Businesses can protect their network by implementing cybersecurity measures such as firewalls, intrusion detection systems, using strong passwords, updating software, avoiding suspicious links, multi-factor authentication, data encryption, least privilege access, security audits, penetration testing, and employee training on cybersecurity awareness.

What are some network security solutions that can help businesses combat intrusions?

Network security solutions like Network Intrusion Prevention Systems (NIPS), Next-Generation Firewalls (NGFWs), Advanced Endpoint Protection, Multi-Factor Authentication (MFA), and Cloud-based Security Solutions are pivotal in reducing the risk of network intrusions by up to 70%.

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Ludo Fourrage

Founder and CEO

Ludovic (Ludo) Fourrage is an education industry veteran, named in 2017 as a Learning Technology Leader by Training Magazine. Before founding Nucamp, Ludo spent 18 years at Microsoft where he led innovation in the learning space. As the Senior Director of Digital Learning at this same company, Ludo led the development of the first of its kind 'YouTube for the Enterprise'. More recently, he delivered one of the most successful Corporate MOOC programs in partnership with top business schools and consulting organizations, i.e. INSEAD, Wharton, London Business School, and Accenture, to name a few. ​With the belief that the right education for everyone is an achievable goal, Ludo leads the nucamp team in the quest to make quality education accessible