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Highlights
GPT models like ChatGPT are being misused by cybercriminals for phishing, malware, and data leaks. This blog outlines real-world risks and what you can do to protect your business.
Generative Pre-trained Transformers (GPTs) like OpenAI's ChatGPT are revolutionising industries across the board. From writing emails to creating educational content, they're powerful tools built to understand and generate human-like text. But the same tech that makes GPTs useful also makes them risky, particularly for cybersecurity.
In February 2024, Microsoft and OpenAI spotted several state-backed hacking groups from Russia, North Korea, Iran, and China using GPTs to improve their exploitation tactics. The Strontium group, linked to Russian military intelligence, has been found using large language models (LLM’s) to understand satellite communication protocols, radar imaging technologies, and other sensitive miliatry information.
But GPTs can also be misused in everyday cybercrime and by employees or contractors who have access to sensitive data.
How GPTs can be weaponised in everyday cybercrime
- Phishing: GPTs can generate convincing phishing emails that mimic real writing styles, making it more difficult to spot and harder for filters to block.
- Social engineering: these models can be used in live chats, like customer support, to trick people into giving up sensitive information. Connected to text-to-speech tools, they could also be used in voice scams.
- Malware code generation: even with filters in place, attackers can trick GPTs into writing malicious code.
- Data leakage: when employees input sensitive company information into these models, that data gets stored and could be leaked back to others.
- Misinformation: GPT’s can 'hallucinate', which means they present false information portrayed as fact. When spread, this can lead to real-world consequences such as political confusion or interference during a crisis.
Real-world proof this is happening
OpenAI, the company behind ChatGPT, have openly called out “SweetSpecter”, a China-based hacking gang that used ChatGPT to gather intel, research vulnerabilities, write attack scripts and more. In May 2024, they even targeted OpenAI employees themselves in a spear-phishing campaign (targeted email scam designed to trick someone into giving away access or data). This is believed to be the first publicly identified US-based target after previously only targeting Middle Eastern, African and Asian political entities.
A report by OpenAI documents this and other real world examples.
How you can protect your business's data
- Train your team: regularly train your employees how to spot dodgy emails. Show them how to check for suspicious links and fake email addresses. Make sure they know to report anything fishy to your security team right away.
- Stay alert: remind everyone that emails or calls asking for money or personal information might not be who they say they are. Always double-check by contacting the person through a different method before doing anything.
- Fact check: don’t trust everything you read, especially if it comes from AI tools like ChatGPT. Always verify information from several sources before sharing or using it.
- Control access to GPT tools: some companies block ChatGPT and similar services to stop sensitive data from leaking. If you don’t want to block them outright, set clear rules on how they can be used.
- Watch your data: keep an eye on how much data is leaving your company's environment. If there’s a big spike, like lots of info being sent to ChatGPT, that’s a red flag and needs checking out.
Looking for support that actually fits your business?
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How DPG overcame last-minute delays to get online in 3 weeks
Anyone who’s managed an office move understands how much coordination it takes: logistics, tight deadlines, suppliers to manage, all while keeping the day job going. But when your internet provider, a well-known legacy player, lets you down just weeks before your move, things can get really stressful.
Three months to get connected – but the provider stalled
DPG is a specialist social justice law firm. With a team of 80, they rely on secure, fast connectivity to manage sensitive legal work.
They gave their internet provider three months’ notice to install a leased line at their new office. But as the move-in date approached, the provider asked for a further 60-day extension.
With just six weeks left to go before staff were due to move in, DPG had no choice but to cancel their contract and find a new supplier.
The problem with ‘business broadband’
Most people search for ‘business broadband’ when they’re looking for internet for their office. Fair enough, it’s the term that’s been marketed to death. But here’s the thing: business broadband isn’t the only option, and most of the time, it won't meet the needs of a modern business. If you need a connection that actually keeps up, a leased line is the answer; reliable, secure, and built for multiple users.
In this blog we explain the differences between the two connections.
Broadband vs leased line explained
- Broadband: A standard, shared internet connection typically designed for home use, but sometimes used in small offices. Speeds can vary, especially during busy times, and upload speeds are often much lower than downloads – which can limit performance for modern business applications.
- Leased line: A private, dedicated connection between your premises and your provider. Symmetrical speeds, guaranteed performance, and no sharing with neighbours - specifically designed to meet the demands of modern business connectivity.
Business broadband: a closer look
Most of the time, business broadband is the same product that an ISP (Internet Service Provider) sells to their residential customers, but more expensive and probably bundled with a low-level cyber security product.
It has a dedicated web page, with stock photos of people doing business. And it comes with some comforting words to tell you that they know how hard business is. Excruciating.
Your traffic isn’t prioritised. Your connection isn’t dedicated. And if you have an ‘account manager’, they’re probably responsible for literally thousands of customers like you.
If you pay more, you might get a commitment to investigate faults within a given time – usually within a day.
When you’re looking for business broadband, bear these things in mind. Look at the details to see if you’re simply being sold a standard home broadband package disguised as a business solution.
What does great internet connectivity for business look like?
It’s very easy to call something business broadband. But it’s a very different thing to provide internet connectivity that’s genuinely fast and reliable enough for London business in 2025.
One of the fundamental features of an internet product for business is a dedicated connection.
‘Broadband’ or ‘FTTP’ (that’s Fibre to the Premise) means that the service you’re paying for is shared between you and typically 30 of your neighbours – whether they’re houses or other businesses.
So when you have a broadband or FTTP connection, don’t expect to get the Gbps speeds you’ve paid for at busy times (which is most of the working day). It’s cheap, and it connects. But it’s not a product that you can rely on to keep your business running.
At the busiest times, you'll have to hope that it’ll give you what you need. That might mean putting up with a poor-quality video call, a painful wait downloading a PowerPoint, or an eternity for every employee to log in to Teams at 9am.
Internet connectivity that you and your business can rely on is going to be dedicated to you, and that means taking a leased line (also known as DIA, or direct internet access).
What are the benefits of a leased line?
A dedicated connection means guaranteed bandwidth
With a leased line, you get every bit you pay for, unlike a shared ‘broadband’ connection, where you can pay for 1Gbps but it’s highly unlikely you’ll ever see that speed.
A connection you can rely on
Always the speed you’ve paid for and infrastructure that’s backed up by an SLA (Service Level Agreement) – and automatic compensation if you choose a really good ISP. And the ability to order a back-up line, to increase the resilience of your service.
Lower latency
The more direct architecture and quicker route to a data centre (where your connection hits the internet) means a leased line will almost always offer lower latency than a broadband connection.
Upload that matches download
Most broadband, FTTP and cable services advertise the download speed but keep quiet on upload – that’s because upload is significantly slower in these services, often as little as a tenth of the speed. Leased lines have ‘symmetrical’ download and upload.
Enhanced security
Security can never be taken for granted, so check on the Infosec and compliance qualifications of your provider – typically, those selling residential-grade services won’t invest in this area, but serious business providers recognise the huge benefit to their customers.
- Broadband: speeds vary, especially during peak times when many users share the line
- Leased line: your own private connection with speeds that never slow down
- Why it matters: faster speeds mean quicker file sharing, uninterrupted calls, and no buffering
How the two really compare
Leased line vs broadband, 13 key differences
1. Shared vs dedicated connection
- Broadband: line is shared with up to 30 users, meaning speeds vary
- Leased line: your own private, dedicated connection with speeds that never slow down
- Why it matters: a dedicated connection keeps critical work flowing without interruptions or slowdowns
2. Upload vs download speeds
- Broadband: downloads are fine, uploads are often much slower
- Leased line: symmetrical (equal upload and download speeds)
- Why it matters: symmetrical speeds mean quicker file sharing, uninterrupted video calls, and seamless cloud uploads/downloads
3. Reliability
- Broadband: line shared with others, so performance can be unreliable when usage is high
- Leased line: dedicated, uncontested connection that stays reliable
- Why it matters: a stable connection doesn't disturb business operations and maximises productivity
4. Service level agreements (SLAs)
- Broadband: uptime and fix times are not guaranteed; outages take longer to resolve
- Leased line: 99.9%+ uptime with fixed repair times, usually within a few hours
- Why it matters: no guaranteed repair times mean more downtime and distruption
5. Proactive monitoring
- Broadband: reactive, your provider might prioritise other issues over yours
- Leased line: 24/7 monitoring; problems often fixed before you notice
- Why it matters: proactive fixes mean fewer outages and smoother operations
6. Dedicated point of contact
- Broadband: no dedicated contact; expect long calls, chat bots, and slow complaint handling
- Leased line: you get a dedicated account manager you can reach directly, usually within minutes
- Why it matters: dedicated point of contact means faster responses, fixes, and no endless chasing
7. Latency (the time it takes for data to travel between you and the person or system you’re connecting to)
- Broadband: higher latency and prone to more network congestion
- Leased line: minimal delay for smooth, instant calls, file uploads etc.
- Why it matters: low latency prevents frozen video or slow cloud uploads
8. Traffic prioritisation
- Broadband: provider decides what gets priority
- Leased line: you control which activities come first (e.g., video calls, file transfers
- Why it matters: without control, important tasks can slow during busy periods
9. Truly unlimited
- Broadband: “unlimited” may come with data caps or throttling (slowing speeds after a threshold
- Leased line: No data limits or throttling; full speed at all times
- Why it matters: no data limits mean no surprise slowdowns mid-project
10. Installation time
- Broadband: a couple of weeks
- Leased line: depends on provider; Vorboss offers “Rapid Install” in as little as 48 hours
- Why it matters: slow setup can delay your business getting online
11. No phone line required
- Broadband: often tied to phone rental
- Leased line: internet-only, perfect for internet-based phone systems (VoIP)
- Why it matters: save money by ditching old-style phone lines while still making calls
12. Cost
- Broadband: cheaper monthly fees
- Leased line: higher cost, but delivers fast, reliable, uninterrupted service
- Why it matters: paying more is worth it if slow internet or downtime is slowing your team, delaying projects, or costing your business money
13. Scalability
- Broadband: limited options for upgrading bandwidth
- Leased line: easily upgraded as your business grows
- Why it matters: leased line supports business growth without needing a completely new internet connection
Feature comparison at a glance
The difference that matters: reliability
That’s the key difference between the experience of these two technologies: how much you can rely on your connection, and how that impacts your business. We see it in every customer interaction as they move from broadband to direct internet – the shackles are off.
While business broadband infrastructure is shared with the businesses and houses around you, leased line (or direct internet) infrastructure is dedicated to you – it isn’t shared with anyone.
It’s your connection, and every bit of the bandwidth you’re paying for is yours. It’s guaranteed. Always giving you the internet speed and capacity you need, no matter how busy things get.
The whole Manchester office coming down for a team day? No problem. Sending a broadcast-quality video file to a client on a deadline? Easy. Worrying about signing up to a new cloud-based software for project management? Don’t. Putting the CEO on a video call that has to be perfect? Do it.
A 10Gbps leased line ensures you always have the speed you need. It’s a service you and your business can rely on.
Installation time
- Broadband: a couple of weeks
- Leased Line: depends on provider; Vorboss offers “Rapid Install” in as little as 48 hours
- Why it matters: slow setup can delay your business getting online
11. No phone line required
- Broadband: often tied to phone rental
- Leased line: internet-only, perfect for internet-based phone systems (VoIP)
- Why it matters: save money by ditching old-style phone lines while still making calls
12. Cost
- Broadband: cheaper monthly fees
- Leased line: higher cost, but delivers fast, reliable, uninterrupted service
- Why it matters: paying more is worth it if slow internet or downtime is slowing your team, delaying projects, or costing your business money
13. Scalability
- Broadband: limited options for upgrading bandwidth
- Leased line: easily upgraded as your business grows
- Why it matters: leased line supports business growth without needing a completely new internet connection
Feature comparison at a glance
The difference that matters: reliability
That’s the key difference between the experience of these two technologies: how much you can rely on your connection, and how that impacts your business. We see it in every customer interaction as they move from broadband to direct internet – the shackles are off.
While business broadband infrastructure is shared with the businesses and houses around you, leased line (or direct internet) infrastructure is dedicated to you – it isn’t shared with anyone.
It’s your connection, and every bit of the bandwidth you’re paying for is yours. It’s guaranteed. Always giving you the internet speed and capacity you need, no matter how busy things get.
The whole Manchester office coming down for a team day? No problem. Sending a broadcast-quality video file to a client on a deadline? Easy. Worrying about signing up to a new cloud-based software for project management? Don’t. Putting the CEO on a video call that has to be perfect? Do it.
A 10Gbps leased line ensures you always have the speed you need. It’s a service you and your business can rely on.
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