Phishing scams — and, increasingly, spear-phishing scams — are the number one way that cyber hackers gain access to closed computer systems, steal information and money, and corrupt data.
Let’s take a look at what phishing and spear-phishing scams really are, how you can spot them, and how to help your organization avoid their highly detrimental consequences.
Phishing and spear-phishing: What’s the difference?
Both phishing and spear-phishing are forms of email-based cyberattacks.
Essentially, both terms refer to email-based attacks that attempt to gain personal or sensitive information using deceptive or disguised emails appearing to be from legitimate sources.
Phishing is the broad term for these attacks. Spear phishing only differs in that these email attacks are specifically targeted at an individual. This may mean that the email includes the individual’s actual name, address, and/or phone number. Or, the email may reference other personal information, such as the individual’s workplace, work position, alma mater, or where they bank.
Here are some examples of spear-phishing emails you may have seen before:
Notice that each example includes a place where you should click. This is by design. Often, simply opening a phishing email will not result in any issues; however, clicking on a link inside the email can actually be enough to cause the bulk of the issues (sometimes, major issues). A police department employee in Florida recently opened a phishing email link that led to ransomware being installed on the city’s computer system. In the end, the ransomware cost the city hundreds of thousands of dollars.
How can clicking on a simple link end in such disaster?
The answer is malware.
Malware is a shortened term for malicious software. This software can be automatically downloaded to your computer and/or entire computer system and network by a “trap door.” These trap doors are disguised as links, attachments, login fields, or downloads, which are embedded within phishing emails.
If hackers can get a spear-phishing target to click on their “trap door,” they can use that gateway to install malware onto your system. And once this happens, your entire network and data are at risk.
Phishing emails often have specific features, which should raise red flags right away:
If you think you or someone else in your company has received a phishing email, do nothing at first. Remember that clicking on links, downloading attachments, and opening files or pictures are all the things that hackers want you to do, which is exactly why you should never do them if you are suspicious of an email.
On the other hand, some emails may be clearly legitimate. It’s important to know the difference.
For example, if you speak to Ross from accounting in person by the water cooler, and he tells you he’ll be sending over an invoice you need to sign in the next 10 minutes, if you get an email with an invoice attachment from Ross in the next 10 minutes, the email’s probably okay.
If you get an email from Ross out of the blue on a Saturday? And you didn’t expect it? And it’s not in the tone that Ross usually uses?
This is when you shouldn’t do anything. Instead, check the legitimacy of the email. Do this either in-person or over the phone. For example, call Ross or wait until Monday to speak with him personally. Double-check that he sent the email. If it turns out the email cannot be accounted for, contact your company’s IT security department immediately.
Understanding and following these guidelines as a CEO or manager is important, but remember that spear-phishing emails can target your employees as well.
For this reason, ensure that all of your employees know and understand:
By following these guidelines, you can keep your business safe from phishing scams and the subsequent ramifications.