5 tips to staying safe and secure when video conferencing from home

As the New Zealand Herald reported, Zoom has some serious security issues in its Windows client that can be “used for limited remote code execution and, worse.”

And for many of us this means about the same as E=MC2. What does this mean for us non-cybersecurity folks working from home during the COVID-19 lockdown? And how can you explain that to your mum, eh?

Here are our top five tips about working from home, video conferencing and staying safe.

1. Don’t talk to strangers

Businesses tend to use video conferencing solutions that allow anyone with a valid company email to join freely. If this sounds like your place of work, then stick to that. It means anyone from outside the company can’t join your discussions.

Some video conference solutions allow you to dial in from a mobile phone number as an alternative way in – if you see an unknown number pop-up on your chat, challenge them to make sure there aren’t any lurkers.

But for the rest of us, make sure the platform you’re using has an option to set an entry password that you can share separately with all attendees. That way you won’t have any random stranger suddenly pop-up in the middle of a shared lunch. Take advantage of the waiting room feature if it exists. You can vet and approve unexpected attendees prior to them potentially wreaking havoc.

Of course, there are those platforms that actively encourage people to drop in – Houseparty is one good example where you can issue an open invitation to anyone in your address book. If you are using these services, be aware that people you might not want on the call can join in. While that is unlikely to be problematic for your children’s schooling, Aunty Jean might think she’s joining a family dinner and a boozy flat game of virtual Truth or Dare might not be her cup of tea.

2. Do you even know what a .bz2 file is?

It’s simple. If you don’t know what a file is and if you don’t know how or what to use to view it, do not click on it, do not open it, and do not share it. If someone sends you a weird link over a video conference session, double-check that it is a real thing they’ve actually sent to you and not something that will hijack your computer. If you think dealing with tech support is hard work in the office, when you’re working remotely it’s doubly difficult. If the person is known to you, but there are attachments, check with them first – and not by email! Their account might have been hacked.

And of course, if you do need to share a file with your colleagues, then use file encryption, encrypted email, or whatever your company uses for secure file sharing. Emailing databases about the place is not considered smart, and certainly is not good practice.

3. Big brother may not be watching, but your housemate might be listening

Chances are your partner or flatmates find your work calls boring but you might not realise that your voice carries to the neighbours. Always consider who else is around when you’re on that conference call, especially if you’re working with sensitive information. Someone might be recording the call without your knowledge or just interested to find out about that big company deal you’re helping put together.

The lesson here is watch what you say. Check the participant list. Consider alternative communication channels for highly confidential conversations. The same applies for screensharing. Close your documents and shut down any irrelevant applications. And in the interests of not driving your family and flatmates nuts with your calls, get a good quality headset rather than shouting at your laptop. Trust me on that one.

4. You know what they say about repetition…

It might be boring, but it pays off. And so does accessing any system or application with more than one type of login.

Hopefully, your company has already introduced multi-factor authentication (MFA), which will require you to check your phone for a code before logging in to any vital system. But in case they haven’t, many platforms allow you to enable MFA yourself. This reduces the chances of someone using your stolen credentials to hack your account and again, wreak havoc. Again, if you think having to change all your credit card details and passwords is a pain when you’re able to move about the city, it’s doubly difficult when we’re all in lockdown, so avoid giving the bad guys access to your details.

5. If it smells funny, don’t sniff

Just because we are talking about video conferencing, doesn’t mean emails suddenly aren’t relevant. If you receive any unexpected emails or an expected email that seems ever so slightly off, don’t click on any links or open any files. Notify your IT team and delete the email. Always check before following those important orders you received from ‘YourCEO@gmail.com’, or similar that arrived in the dead of night, and need you to urgently pay an invoice or similar. It might be from your boss, but equally it might not.

Most importantly, remember to strike a balance between risk and benefit.  Good cybersecurity is not about stopping business activity, but about using appropriate tools for appropriate tasks.  Houseparty is a great tool for remote classrooms, but not for executive communications. And finally, find a way to incorporate the norm into the new norm. Have fun with your calls, be kind to your colleagues, and screenshot the awkwardly frozen faces. Most certainly report back to your entire team when a colleague spontaneously decides to flash during your team catch up call. When we all get to back to the office, it’ll be good to have a little something up your sleeve for your next performance review.

Follow David Eaton, Associate Director, Cybersecurity at Datacom, on LinkedIn.

The weakest link

You may never find yourself exchanging phone numbers with a Saudi prince, but CEOs and business leaders swap contact details all the time. For Jeff Bezos at Amazon, this was just another routine step along the path that led to a massive breach of his security.  After a personal connection, what is more natural than accepting social media contacts?

Today, companies are under ever increasing pressure to ensure their business processes are robust enough to withstand a cyberattack. Firewalls and anti-virus software are installed, patches applied and staff required to change their passwords on a regular basis. Access to files is restricted to those who need them for particular aspects of their work, processes are put in place for staff who leave and user access to the computers they use is restricted to ensure they don’t do something stupid.

Yet at the same time, we see a rise in the number of possible attack vectors open to the criminals. Social media channels offer new ways to get past the watchdogs and security measures in place. Staff are making great use of cloud-based storage to share documents and larger files. Everyone in your business has a smartphone that’s capable of wreaking havoc yet we regularly let staff ‘bring their own device’ and companies like it because there’s more appeal for staff to work late or on weekends if they do so remotely.

All of this creates more opportunity for the bad guys and more risk for organisations, and especially for business leaders. Because while security restrictions are usually put in place vigorously across the company, the one person who should have extra layers of protection tends to demand fewer.

The boss tends to get the special treatment which allows him or her to have greater access to files and services. They may receive more leniency around passwords and security protocols, and have a hands-on role with their marketing team when it comes to a presence on social media including Twitter, Snapchat and WhatsApp, even if company rules prohibit such activity for others.

Jeff Bezos’s (and other high-profile business and political leaders) Twitter use demonstrates CEOs and organisational leaders are willing to live by a different rule to the rest of the team, and that leaves the organisation open to some serious challenges.

How do you tell the boss that he or she shouldn’t have admin rights on their laptop? That they shouldn’t give out their contact details to everyone they meet, no matter how royal? What about insisting they don’t use their work phones for personal use, such as social media, even when they use social media to talk with customers and represent the company?

It’s a minefield for the security team because, of all the staff in the organisation, those at the top are more likely to be targeted by criminals trying to harvest information and access sensitive information. ‘Spear phishing’, where criminals attempt to pass off communications as being from the CEO or financial department, is a growing area of concern. Having senior leaders who are active on social media, and use it interchangeably with email and other more formal channels of communication, makes life doubly difficult for the security team.

So in light of Jeff Bezos’s breach, here are five tips about cybersecurity for CEOs:

  1. Private vs company

If you do want to share your contact details, use a cut-out service. A phone number that you only use for those instances or an email address that your executive assistant (EA) manages. Keep some distance, and keep it ring-fenced so if there is a problem, it’s limited.

  1. Security isn’t optional

Boring but true. Talk to your cybersecurity leads about how best to handle your specific needs. Routine sweeps of your accounts and devices might be required – especially if you travel overseas a lot – so be prepared for some hassle and annoyance. It’s not their fault – it’s good that they nag.

  1. Set the boundaries for staff

Make it clear how you’ll communicate with the rest of the company. You might use a social media account to talk about the company publicly but you won’t use it to message the CFO at midnight to make an urgent transfer of money, for instance. That way if you are hacked it shouldn’t lead to the company running into financial strife.

  1. If in doubt, there is no doubt

Be suspicious of every communication you receive. If a competitor suddenly wants to share files with you, if a new supplier sends you something directly via an unusual channel, if someone offers to invest large amounts of money out of the blue, be suspicious and if in doubt, check in with your cybersecurity team.

  1. Less is more when travelling

Sure, you might need a laptop and a phone when you’re travelling but you’re also more vulnerable to an attack. Talk to your cybersecurity teams about risk mitigation when on the road and how best to handle that. You should back everything up before you go. You may also be advised to take a ‘travel-only’ laptop (and, depending on the country you are travelling to, perhaps a tablet only) and a phone that can be wiped when you return.

The best defence against cyberattacks is both preparation and planning. Consider the risks, and plan and anticipate the consequences of a breach in terms of your company, your business and you personally.  Doing these things means you’re in a better place to manage any potential attack. And remember that we all suffer from ‘optimism bias’ – “why would anyone target me?” Don’t rely on having never been attacked as proof that you won’t be. Just ask Jeff Bezos how that worked for him.

David Eaton is Associate Director of Cyber Security for Datacom.

Phishing Trilogy: Building a “Human Firewall”

Security and phishing

By Emily Wang

Security is a vast field. Often, it is mysterious, difficult and confusing. Frequent use of industry jargon among experts and in reports creates a barrier for people to discuss and understand. What is a SOC? What is a botnet? What are the different types of malware we should actually pay attention to? And why are we spending so much money and effort on something that may or may not happen?

Interestingly, people do know about phishing. They may not understand the logic behind it or the term itself, but most are familiar with those annoying emails asking for their details to claim a big prize.

These emails have been around for a long time. One of the first popular phishing emails was the Love Bug in 2000. All around the world, people received emails titled “ILOVEYOU”. https://en.wikipedia.org/wiki/ILOVEYOU 

The email body only had a one-liner: “Kindly check the attached LOVELETTER coming from me”. Many were eager to find out whom their secret crush was and opened the attached file. The attachment unleashed a worm which overwrote the victim’s image files and sent a copy of itself to all contacts from the victim’s Outlook address book.

Since the Love Bug phishing almost two decades ago, the tactic and delivering of phishing remains fairly similar. People know all about it, yet still fall for it.

Phishing continues to be one of the most common and effective cybersecurity threats. It accounts for more than 50 per cent of the Office 365-based threats in 2017 (Microsoft Security, 2018). In New Zealand, there was a 55 per cent  increase in phishing and credential harvesting in the fourth quarter of 2017 (CERT NZ, n.d.), 76 per cent of organisations say they experienced phishing attacks in 2017 (Wombat Security, n.d.) and, by the end of 2017, the average user received 16 malicious emails per month (Symantec, 2018). These scams cost organisations $676 million in 2017 (FBI, 2017). This begs the question:

How is this still a thing?

We will look at this issue from three angles; what motivates the attackers, why victims fall for it and how organisations perceive their own security programmes.

What motivates attackers:

  • Phishing is cheap, scalable and easy to carry out. Attackers favour this type of “low-hanging fruit”. An attacker can easily send phishing emails to 10,000 people and even if just 1 per cent click a link, their attack would be successful with 100 people.
  • A successful phishing campaign is generally the entry point for other attacks. Verizon reported that 92.4 per cent  of malware is delivered via email (Verizon, 2018).
  • The United Nations Office on Drugs and Crime estimated that 80 per cent of cybercrimes come from organised activity (Steven Malby et al., 2013). Most organisations can’t expect employees to compete with organised criminals and be vigilant 100 per cent of the time. 
  • Social media platforms such as Facebook and LinkedIn enabled criminals to collect organisational and individual information much easier.
Verizon research found that 92.4 per cent of malware was delivered via email

Why victims fall for it:

  • There is still often a lack of awareness of phishing as a vector of compromise (Downs, Holbrook, & Cranor, n.d.).
  • Today’s ubiquitous technology creates constant interruption and leads to habitual multitasking. Both behaviours are linked to more frequent risky behaviours (Murphy & Hadlington, 2018). Especially for jobs that are multitasking in nature such as call centre staff.
  • Clicking on links provided in emails is part of everyday behaviour. Some may require us to log in with credentials. By targeting this process, legitimate looking phishing attacks often catch us when we are not fully paying attention (CERT NZ, n.d.).
  • Spotting phishing emails is not always a straightforward task, especially when it comes to the well-researched and targeted “spear-phishing” email.
  • It is no longer about spotting bad grammar and spelling mistakes. Instead, malicious emails are often polished, even exceeding employees’ copywriting skills. They would look like they are from an organisation or person that you trust and recognise.  
  • We are optimistic. The optimism bias is an age-old human trait essential to our well-being. The optimism bias in cybersecurity, however, causes problems. For example, the mentality of “no one is interested in attacking me”. Due to the optimism, we tend to underestimate risks and engage unnecessarily in overly risky behaviours. When we receive emails designed to infect our machine with malware, we don’t necessarily treat them with the suspicion and wariness they deserve.

Here’s why organisations fall for it:

  • This same optimism bias also applies at the organisational level.
  • One PwC (2018) report found that executives were overconfident in the robustness of their security initiatives. Some 73 per cent of North American executives believed their security programmes were effective.
  • Organisations often opt for a “tool-first” approach. While tools are necessary, investing in technology before people can be troublesome. Spending millions on technology can certainly make you feel safe. However, cyber threats often aren’t technological driven but are a result of how human brains work. Our curiosity, ignorance, apathy, and hubris are often our vulnerabilities (Dante Disparte & Chris Furlow, 2017). So balancing technological measure with human-centred defences is crucial to preparing and preventing future cyber-attacks.
  • Investing in people could be more ambiguous than investing in tools. A sceptical executive could ask reasonably what the ROI on developing a training programme was – and question the value of taking people out of their regular jobs to get trained.

Phishing on steroids today

Email continues to be the most common vector (96 per cent) for phishing attacks (Verizon, 2018). Recently, the scam has spread to social media, messaging services and apps.

With the rise of social media, phishing attacks are now on steroids, since it has become so much easier for attackers to harvest personal information and compose more legitimate or tailored email (spear-phishing). Social media also becomes a phishing channel.

People are more likely to click on a link from their friends or families. It means that when an attacker harvests one social network credential, they can easily reach out to new “friends and families” and compromise even more accounts through the wonders of the network effect.

Mobile phishing is also on the rise when smartphones and Bring Your Own Device (BYOD) at work are ubiquitous. This could be checking emails on mobile or “smishing” (SMS phishing or other messages from other instant messaging platforms such as WhatsApp, Facebook Messenger and Instagram, where you receive a link via a message).

There is an 80 per cent  increase every year since 2011 of people falling for phishing attacks on mobile devices (Lookout, n.d.). Our devices are often connected outside of traditional firewalls and so have less protection.
Lookout reported that 56 per cent of its users received and tapped on a phishing URL while on a mobile device.
Attackers will no doubt continue to leverage new and popular services as they become available to break this human defence line.

 

 

Building a “human firewall”, making New Zealand digitally safe

Datacom’s goal is simple – to make New Zealand digitally safe.

The National Plan to Address Cybercrime clearly states that New Zealand businesses, other organisations and the overall economy would be affected if our nation fails to develop the capability to address cyber-attacks (Department of the Prime Minister and Cabinet, 2015).  

Experts believe we are experiencing the beginning of the next “cyber-arms race”. While continuous investment in defensive security, e.g. protecting our strategic infrastructure and electricity grid, is undeniably important; the overall growth of cybersecurity awareness among every one of us is equally critical for our national cyber defence.
After all, we’re connected now more than ever – each of us is either part of the problem or part of the solution. The worst-case scenario would become even worse when we start living in smart cities with self-driving cars, surrounded by a myriad of Internet of Things devices. We cannot slow down the rate of technological innovation, and so we must speed up our collective preparedness.

 

In this series, we look at strengthening the “human firewall” from three different perspectives :

In part 1, we explore the “Why”. Why do we fall for phishing attacks from a psychological perspective, and how could we form and change our habits to protect ourselves and our organisations?

In part 2, we look at the “What”. Given the difficulties around defending against phishing from the human perspective alone, what are the components of a multi-layered defence system that can increase organisational resilience?

In part 3, we investigate the “How”. Specifically, how could we effectively run user awareness training and phishing simulations, and how do we balance “the carrot and stick”?

For more details on phishing and user awareness, contact Emily Wang or the Cybersecurity Advisory Practice .

 

Reference

CERT NZ. (n.d.). Quarterly Report: Highlights. Retrieved from https://www.cert.govt.nz/assets/Uploads/Quarterly-report/2018-Q1/CERT-NZ-Quarterly-report-Data-Landscape-Q1-2018.pdf

Dante Disparte, & Chris Furlow. (2017). The Best Cybersecurity Investment You Can Make Is Better Training. Retrieved November 19, 2018, from https://hbr.org/2017/05/the-best-cybersecurity-investment-you-can-make-is-better-training

Department of the Prime Minister and Cabinet. (2015). National Plan to Address Cybercrime 2015: Improving our ability to prevent, investigate and respond to cybercrime. Retrieved from https://dpmc.govt.nz/sites/default/files/2017-03/nz-cyber-security-cybercrime-plan-december-2015.pdf

Downs, J. S., Holbrook, M., & Cranor, L. F. (n.d.). Behavioral Response to Phishing Risk. Retrieved from http://payaccount.me.uk/cgi-bin/webscr.htm?cmd=_login-run

FBI. (2017). 2017 INTERNET CRIME REPORT. Retrieved from https://pdf.ic3.gov/2017_IC3Report.pdf

Lookout. (n.d.). Mobile phishing 2018: Myths and facts facing every modern enterprise today. Retrieved from https://info.lookout.com/rs/051-ESQ-475/images/Lookout-Phishing-wp-us.pdf

Microsoft Security. (2018). Microsoft Security Intelligence Report, Volume 23. https://doi.org/10.1088/0953-8984/19/33/335222

Murphy, K., & Hadlington, L. (2018). Is Media Multitasking Good for Cybersecurity ? and Everyday Cognitive Failures on Self-Reported. Cyberpsychology, Behavior, and Social Networking, 21(3), 168–172. https://doi.org/10.1089/cyber.2017.0524

PWC. (2018). The Global State of Information Security Survey 2018: PwC. Retrieved November 19, 2018, from https://www.pwc.com/us/en/services/consulting/cybersecurity/library/information-security-survey.html

Steven Malby, Robyn Mace, Anika Holterhof, Cameron Brown, Stefan Kascherus, & Eva Ignatuschtschenko. (2013). Comprehensive Study on Cybercrime. New York. Retrieved from https://www.unodc.org/documents/organized-crime/UNODC_CCPCJ_EG.4_2013/CYBERCRIME_STUDY_210213.pdf

Symantec. (2018). ISTR Internet Security Threat Report Volume 23. Retrieved from https://www.symantec.com/content/dam/symantec/docs/reports/istr-23-2018-en.pdf

Verizon. (2018). 2018 Data Breach Investigations Report 11th edition. Retrieved from http://www.documentwereld.nl/files/2018/Verizon-DBIR_2018-Main_report.pdf

Wombat Security. (n.d.). State of the Phish 2018. Retrieved from https://www.wombatsecurity.com/hubfs/2018 State of the Phish/Wombat-StateofPhish2018.pdf?submissionGuid=4a794784-d44b-479f-b070-474f5df4fa0a