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Glossary of Terms: Types of Cyberthreats Aimed at Employees

Glossary of Terms:

Types of Cyberthreats Aimed at Employees

What types of threats should your employees be trained to spot so that they think before they click? Here are the most common ones:

Phishing emails. These are relatively unfocused email messages designed to collect sensitive information, such as login credentials, credit card information, Social Security numbers and other valuable data. Phishing emails pretend to come from trustworthy sources like banks, credit card companies, shippers and other sources with which potential victims have established relationships. More sophisticated phishing attempts use corporate logos and other identifiers to fool potential victims into believing the emails are genuine.

Spearphishing emails. These are targeted phishing attacks typically focused on one company, or affinity group (such as an industry organization), reflecting the fact that a cybercriminal has studied the target and crafted a message designed to have a high degree of believability and a potentially high open rate.

Consumer file sync and share tools. Productivity tools like Dropbox, Microsoft OneDrive and Google Drive, which let users make files available on all desktop, laptop, and mobile platforms, generally are safe but can be targeted by sophisticated criminals as an entry point. For example, when an employee accesses corporate files on a home computer that does not have current anti-virus software, the employee can inadvertently infect these files with malware. When files are synced back to the employee’s work computer, malware can infect the network because it may have bypassed corporate email, web gateway, and other defenses.

Watering holes. In these social engineering attacks, cybercriminals identify websites they would like to infiltrate and that employees might visit on a regular basis. They infect these sites with malware.

Malicious Internet advertising (malvertising). This is designed to distribute malware through advertising impressions on websites.

User errors. Users sometimes inadvertently install malware or compromised code on their computers. This can occur if they install ActiveX controls, download a codec, install various applications intended to address some perceived need (such as a capability that IT does not support), or respond to scareware attempts that prey on users who are trying to protect their platforms from viruses and other malware.

Mobile malware. The growing use of smartphones and tablets is increasingly being exploited by cybercriminals. Most infections impact Android devices.

Compromised search engine queries. Valid queries can be hijacked by cybercriminals to distribute malware when employees perform web searches. This type of attack relies on poisoning results, leading to the display of malware-laden sites during these searches. This is particularly effective for popular search terms, such as information on celebrities, airline crashes, natural disasters, and other “newsy” items.

Mobile copycat apps. Some mobile applications are distributed through vendor-based and third-party stores that offer varying levels of security. If the store lacks stringent standards, serious security risks like distribution of copycat apps and malware that can cause infections when downloaded can occur.

Botnets. These are the source of many successful hacking and phishing attacks against high-profile targets. A CenturyLink Threat Research Labs study for a 2018 threat report tracked an average of 195,000 threats per day from botnets impacting an average of 104 million unique targets, from large servers to handheld devices, that steal sensitive data and launch network attacks impacting businesses worldwide.

Ransomware. In this particularly malicious form of attack, a cybercriminal can encrypt all files on a hard disk and then demand ransom for access to a decryption key. Victims who choose not to pay the ransom quickly will have their files remain encrypted permanently. Cryptolocker, a common variant of ransomware, typically extorts a few hundred dollars per incident and normally is delivered through email with a PDF or .zip file disguised as a shipping invoice or some other business document.

Hacking. With this form of cyberattack, cybercriminals use many techniques to breach corporate defenses.

Formjacking attacks are used to steal credit card details and customer data by injecting snippets of malicious JavaScript code into the payment section of an e-commerce website.

Think Before You Click

Train employees to become the first line of defense in the network security risk prevention infrastructure.

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