You Need to Watch Out for Reply-Chain Phishing Attacks

Phishing. It seems you can’t read an article on cybersecurity without it coming up. That’s because phishing is still the number one delivery vehicle for cyberattacks.

A cybercriminal may want to steal employee login credentials. Or wish to launch a ransomware attack for a payout. Or possibly plant spyware to steal sensitive info. Sending a phishing email can do them all

80% of surveyed security professionals say that phishing campaigns have significantly increased post-pandemic.

Phishing not only continues to work, but it’s also increasing in volume due to the move to remote teams. Many employees are now working from home. They don’t have the same network protections they had when working at the office.

Why has phishing continued to work so well after all these years? Aren’t people finally learning what phishing looks like?

It’s true that people are generally more aware of phishing emails and how to spot them than a decade ago. But it’s also true that these emails are becoming harder to spot as scammers evolve their tactics.

One of the newest tactics is particularly hard to detect. It is the reply-chain phishing attack.

What is a Reply-Chain Phishing Attack?

Just about everyone is familiar with reply chains in email. An email is copied to one or more people, one replies, and that reply sits at the bottom of the new message. Then another person chimes in on the conversation, replying to the same email.

Soon, you have a chain of email replies on a particular topic. It lists each reply one under the other so everyone can follow the conversation.

You don’t expect a phishing email tucked inside that ongoing email conversation. Most people are expecting phishing to come in as a new message, not a message included in an ongoing reply chain.

The reply-chain phishing attack is particularly insidious because it does exactly that. It inserts a convincing phishing email in the ongoing thread of an email reply chain.

How Does a Hacker Gain Access to the Reply Chain?

How does a hacker gain access to the reply chain conversation? By hacking the email account of one of those people copied on the email chain.

The hacker can email from an email address that the other recipients recognize and trust. They also gain the benefit of reading down through the chain of replies. This enables them to craft a response that looks like it fits.

For example, they may see that everyone has been weighing in on a new product idea for a product called Superbug. So, they send a reply that says, “I’ve drafted up some thoughts on the new Superbug product, here’s a link to see them.”

The link will go to a malicious phishing site. The site might infect a visitor’s system with malware or present a form to steal more login credentials.

The reply won’t seem like a phishing email at all. It will be convincing because:

• It comes from an email address of a colleague. This address has already been participating in the email conversation.
• It may sound natural and reference items in the discussion.
• It may use personalization. The email can call others by the names the hacker has seen in the reply chain.

Business Email Compromise is Increasing

Business email compromise (BEC) is so common that it now has its own acronym. Weak and unsecured passwords lead to email breaches. So do data breaches that reveal databases full of user logins. Both are contributors to how common BEC is becoming.

In 2021, 77% of organizations saw business email compromise attacks. This is up from 65% the year before.

Credential theft has become the main cause of data breaches globally. So, there is a pretty good chance of a compromise of one of your company’s email accounts at some point.

The reply-chain phishing attack is one of the ways that hackers turn that BEC into money. They either use it to plant ransomware or other malware or to steal sensitive data to sell on the Dark Web.

Tips for Addressing Reply-Chain Phishing

Here are some ways that you can lessen the risk of reply-chain phishing in your organization:

• Use a Business Password Manager:

This reduces the risk that employees will reuse passwords across many apps. It also keeps them from using weak passwords since they won’t need to remember them anymore.

• Put Multi-Factor Controls on Email Accounts:

Present a system challenge (question or required code). Using this for email logins from a strange IP address can stop account compromise.

• Teach Employees to be Aware:

Awareness is a big part of catching anything that might be slightly “off” in an email reply. Many attackers do make mistakes.

How Strong Are Your Email Account Protections?

Do you have enough protection in place on your business email accounts to prevent a breach? Let us know if you’d like some help! We have email security solutions that can keep you better protected.

—
Featured Image Credit

This Article has been Republished with Permission from .

What Should You Do to Reduce Risk When Your…

Few things invoke instant panic like a missing smartphone or laptop. These devices hold a good part of our lives. This includes files, personal financials, apps, passwords, pictures, videos, and so much more.

The information they hold is more personal than even that which is in your wallet. It’s because of all your digital footprints. This makes a lost or stolen device a cause for alarm.

It’s often not the device that is the biggest concern. It’s the data on the device and access the device has to cloud accounts and websites. The thought of that being in the hands of a criminal is quite scary.

There are approximately 70 million lost smartphones every year. The owners only recover about 7% of them. Workplace theft is all too common. The office is where 52% of stolen devices go missing.

If it’s a work laptop or smartphone that goes missing, even worse. This can mean the company is subject to a data privacy violation. It could also suffer a ransomware attack originating from that stolen device.

In 2020, Lifespan Health System paid a $1,040,000 HIPAA fine. This was due to an unencrypted stolen laptop breach.

The Minutes After the Loss of Your Device Are Critical

The things you do in the minutes after missing a device are critical. This is the case whether it’s a personal or business device. The faster you act, the less chance there is for exposure of sensitive data.

What Types of Information Does Your Device Hold?

When a criminal gets their hands on a smartphone, tablet, or laptop, they have access to a treasure trove. This includes:

• Documents
• Photos & videos
• Access to any logged-in app accounts on the device
• Passwords stored in a browser
• Cloud storage access through a syncing account
• Emails
• Text messages
• Multi-factor authentication prompts that come via SMS
• And more

Steps to Take Immediately After Missing Your Device

As we mentioned, time is of the essence when it comes to a lost mobile device. The faster you act, the more risk you mitigate for a breach of personal or business information.

Here are steps you should take immediately after the device is missing.

Activate a “Lock My Device” Feature

Most mobile devices and laptops will include a “lock my device” feature. It allows for remote activation if you have enabled it. You will also need to enable “location services.” While good thieves may be able to crack a passcode, turning that on immediately can slow them down.

What about “find my device?”

There is usually also a “find my device” feature available in the same setting area. Only use this to try to locate your device if you feel it’s misplaced, but not stolen. You don’t want to end up face to face with criminals!

Report the Device Missing to Your Company If It’s Used for Work

If you use the device for business, notify your company immediately. Even if all you do is get work email on a personal smartphone, it still counts. Many companies use an endpoint device manager. In this case, access to the company network can be immediately revoked.

Reporting your device missing immediately can allow your company to act fast. This can often mitigate the risk of a data breach.

Log Out & Revoke Access to SaaS Tools

Most mobile devices have persistent logins to SaaS tools. SaaS stands for Software as a Service. These are accounts like Microsoft 365, Trello, Salesforce, etc.

Use another device to log into your account through a web application. Then go to the authorized device area of your account settings. Locate the device that’s missing, and log it out of the service. Then, revoke access, if this is an option.

This disconnects the device from your account so the thief can’t gain access.

Log Out & Revoke Access to Cloud Storage

It’s very important to include cloud storage applications when you revoke access. Is your missing device syncing with a cloud storage platform? If so, the criminal can exploit that connection.

They could upload a malware file that infects the entire storage system. They could also reset your device to resell it, and in the process delete files from cloud storage.

Active a “Wipe My Device” Feature

Hopefully, you are backing up all your devices. This ensures you have a copy of all your files in the case of a lost device.

Does it look like the device is not simply misplaced, but rather stolen or lost for good? If so, then you should use a remote “wipe my device” feature if it has been set up. This will wipe the hard drive of data.

Need Mobile Device Security Solutions?

No matter what size company you have, mobile device management is vital. Contact us to learn more about our endpoint security solutions.

—
Featured Image Credit

This Article has been Republished with Permission from .