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How Your Law Firm’s File Hosting Services Are Becoming Phishing Tools

Beware this smart scam

Arthur Gaplanyan

Shared File Phishing

Imagine you receive an email saying someone shared a document with you via a reputable file hosting service like OneDrive or Dropbox. As a busy law firm professional, you click without thinking—after all, it looks legitimate.

But behind that file could be a well-disguised phishing scam aimed at stealing your credentials or accessing sensitive client data.

This emerging threat is growing rapidly, and law firms need to stay vigilant. Let’s break it down: what’s the threat, how does it work, and most importantly, how can you protect your firm?

What is this file hosting threat?

Phishing scams are no longer confined to suspicious emails or poorly designed fake websites. Cybercriminals have leveled up, using trusted file hosting services to carry out their schemes. These platforms—tools you probably rely on daily—are being hijacked to distribute malicious files and trick users into revealing sensitive information.

Why is this particularly dangerous for law firms? Because attackers exploit the inherent trust in these platforms. They know a shared file from Dropbox or SharePoint looks legitimate, and they count on you to let your guard down.

How Does It Work?

The mechanics of these scams are both clever and alarming. Here’s how they usually play out:

Account Compromise


Attackers gain access to a legitimate account, often by purchasing stolen credentials or through earlier phishing efforts.

Uploading a Malicious File


They upload something that looks innocent—perhaps a PDF or a Word document. Sometimes it’s a fake login page disguised as a shared file.

Sending Notifications


The file hosting service sends an automatic email to you, the target, letting you know a file has been shared. These notifications look real because, well, they are.

Stealing Credentials


When you open the file or follow the embedded link, you’re directed to a phishing page that mimics a legitimate login portal. Entering your details gives the attackers access.

Why Should Law Firms Care?

The stakes are incredibly high for law firms. Here’s what’s at risk:

Confidentiality Breaches


A single attack could expose sensitive client information, undermining attorney-client privilege and your firm’s reputation.

Financial Loss


Whether through ransom demands, fraud, or recovery efforts, these attacks can hit your bottom line hard.

Reputation Damage


Trust is the cornerstone of your business. A security breach can make clients question whether their information is safe in your hands.

How to Stay Safe

Thankfully, there are practical steps you can take to minimize your risk:

Educate Your Team


Ensure everyone at your firm recognizes phishing scams, particularly those involving shared file notifications. Regular training is key.

Enable Multi-Factor Authentication (MFA)


Adding a second layer of verification can thwart attackers, even if they have your password.

Verify Before Clicking


If you receive an unexpected shared file, verify its legitimacy. Call the sender to confirm it’s real—don’t rely on email alone.

Invest in Security Tools


Use advanced software to scan files and links for malicious activity before they’re opened.

Establish Clear Policies


Create firm-wide protocols for handling shared files and reporting suspicious activity.

Take Charge of Your Security

Cyber threats like these can feel overwhelming, but knowledge is power. By understanding how file hosting services are being exploited and taking proactive steps, you can shield your law firm from falling victim. Remember, the goal isn’t just to react—it’s to anticipate and prevent.

Now’s the time to review your security practices. Are your employees prepared? Are your systems robust enough? If not, it’s worth investing in the tools and training to keep your firm, your clients, and your reputation safe. After all, in the legal world, trust is everything. Don’t let a phishing scam compromise yours.