The Signs of a Cybersecurity Attack

Within the last several years alone, there have been many notable cyber-attacks that affected well-known organizations across the globe. In fact, in 2023 alone, cyberattacks averaged out to be a stunning $4.45m per data breach. This means that not only are cyber-attacks a threat to your data and security, but also your very bottom line.

While it’s unfortunately true that cyber threats are inevitable, we’ve got good news: Arming yourself with knowledge about the kinds of cyber-attacks that can occur will empower you to make more proactive strategic decisions when it comes to cybersecurity. In this handy blog, we’ll cover some comprehensive lists of what you can look out for during a cyber-attack. Bookmark, copy and paste, or screenshot what you need; knowledge is power!

Cyber-Attack Clues 

Cybersecurity attacks can take many forms, and the signs can be subtle or very obvious. Here are some common indicators that you might be experiencing a cyberattack:

Cyber-Attack Indicators:

• Slow computer performance: Your computer suddenly becomes sluggish, programs take longer to load, or the system crashes frequently.
• Unexpected pop-ups and ads: You start seeing a lot of pop-up ads, especially in places where you normally wouldn’t, like government websites.
• Unusual computer behavior: Your computer won’t shut down or restart, displays repeated error messages, or changes your default search engine or homepage.
• New toolbars or icons: You notice new and unfamiliar toolbars or icons in your browser or on your desktop.
• Security software disabled: Your antivirus or other security software has been disabled or compromised.
• Emails you didn’t send: Your contacts receive emails from you that you didn’t write, often containing suspicious links or attachments.
• Lost or corrupted files: You lose access to your files, or you find them corrupted or deleted.
• Unusual account activity: You notice strange activity on your online accounts, like social media posts you didn’t make or emails you didn’t send.
• Password reset emails: You receive password reset emails for accounts you didn’t request.
• Suspicious login attempts: You receive notifications of login attempts from unfamiliar locations or devices.
• Unexplained charges: You notice unusual or unauthorized charges on your credit card or bank statements.
• Phone calls or bills for unknown accounts: You receive bills or calls for accounts, products, or services you didn’t open.
• Mail delivery problems: You stop receiving regular bills or mail.
• New accounts on your credit report: You see new and unfamiliar accounts on your credit report.
• Denial of credit: Your credit card is unexpectedly declined
• Social media account issues: Your social media account has posts you didn’t make, or you can’t log in.
• Email account issues: You can’t log into your email, your inbox activity is unusual, or your “Sent” folder contains messages you didn’t send.
• Friends receiving strange messages from you: Your friends or family members report receiving strange emails or messages from you, often containing random links or fake requests for money.

Cybersecurity threats come in many shapes and forms. Common types of cybersecurity attacks include ransomware attacks and phishing. Let’s take a look at the common warning signs of these attacks:

Signs of a Ransomware Attack:

• Inaccessible files: You can no longer access your files.
• Ransom message: You see a message demanding a ransom payment in exchange for access to your files.
• Encrypted files: Your files have been encrypted and have an unusual file extension.
• Slow network performance: Your network becomes very slow or unresponsive.
• High data usage: You notice unusually high data usage on your network.

Warning Signs of Phishing:

• Suspicious emails: You receive emails that look suspicious, with poor grammar, generic greetings, or urgent requests for personal information.
• Spoofed links: The links in the email don’t match the text displayed, or they lead to unfamiliar websites.
• Suspicious attachments: The email contains attachments that you weren’t expecting or that seem suspicious.
• Requests for personal information: The email asks for your login credentials, bank details, or other sensitive information.
• Sense of urgency: The email tries to pressure you into taking immediate action without thinking.

If you notice any of these signs, it’s important to take immediate action to protect yourself and your data. If you suspect a cybersecurity attack, protect yourself and your organization by taking the following preventative measures and developing a cyber-attack response plan.

If You Suspect You’ve Been Cyber-Attacked:

• Disconnect from the internet: This can help prevent the attack from spreading.
• Change your passwords: Change your passwords for all of your online accounts, especially your email and banking accounts.
• Scan your computer for malware: Use a reputable antivirus program to scan your computer for malware.
• Contact your bank or credit card company: If you notice any unauthorized charges, contact your bank or credit card company immediately.
• Report the attack: Report the attack to the appropriate authorities, such as the police or the Federal Trade Commission (FTC).

How to Prevent Cyber-Attacks

Remember, prevention is key. Here are some tips on how to prevent cybersecurity attacks:

• Use strong passwords: Choose passwords that are long, complex, and unique.
• Be careful about what you click: Don’t click on links or open attachments from unknown or untrusted sources.
• Keep your software up to date: Make sure your operating system, applications, and antivirus software are up to date.
• Use a firewall: A firewall can help protect your computer from unauthorized access.
• Be wary of phishing scams: Be suspicious of emails or messages that ask for your personal information.
• Educate yourself: Stay informed about the latest cybersecurity threats and how to protect yourself.

Stay Ahead of Cyber-Attacks 

Did you learn something new? Whether you’re in leadership or an IT service desk agent, these handy tips can arm anyone against the genuine and ongoing threat of cyber-attacks. By being vigilant and taking the necessary precautions, you can help protect your organization against anything that may come your way.