Office 365 Compromise

If you suspect or have discovered that you’ve become a victim of a data breach, attack, or compromise, do not hesitate to contact us.

We constantly respond to data breaches, ransomware attacks, and the like from businesses relying on Office 365 for many of their core business functions. These attacks can be devastating in their scope and consequences due to how interconnected the systems are and the level of access an attacker can gain.

How Office 365 Compromise Starts

Email Phishing

These crafty email messages will target an employee or admin with a malicious hyperlink or attachment masquerading as something else. Clicking on those malicious items may initiate malware processes or grant access to the organization’s systems to lurk and collect more information.

RDP Access

RDP (Remote Desktop Protocol) is Microsoft’s proprietary way to provide access for remote display and control over a network connection. Attackers can gain access through open RDP ports accessible from the public Internet. Once inside, they can access even more credentials, exfiltrate data, install malware, etc.

Brute-Force Attacks

Many data breaches still begin with a simple brute-force attack in which the hacker simply guesses the user’s password over and over again until they get it right. These attacks succeed, unfortunately, due to many people’s tendencies to still use simple, easy-to-remember passwords and reuse passwords across multiple platforms.

How to Prevent an Office 365 Compromise

Time and time again, we help businesses recover from incidents that may have been prevented if certain cybersecurity protocols had been followed.

Install Routine Patches

Considering the entire Office 365 ecosystem is controlled by Microsoft, install patches immediately upon release to keep up-to-date and protect against known vulnerabilities.

Implement Team Training

This is another very simple, yet often overlooked precaution. Inform your team of the latest threats and risks so they know how to identify, and most importantly, avoid phishing and social engineering attempts.

Enforce Multi-Factor Authentication

Requiring employees to use even simple multi-factor authentication apps requiring a confirmation code from a cell phone for every login could very well be what protects you from a breach.

Never Assume Protection

Many data breaches occur because everybody assumes that the proper security measures (i.e., firewalls) are already in place or are enabled by default, leading to businesses getting caught with their pants down when they become victims of data breaches.

Monitor Systems Diligently

Review security tools such as audit logs to identify irregularities such as email forwarding rules, rapid geographical IP address shifts, etc.

Use a Password Manager

We may sound like a broken record by continually hammering this point, but many breaches happen because people still use (and re-use) simple passwords for multiple systems. Leverage password generators and password manager software to boost your network’s security.

The Gillware Approach

When it comes to our data breach investigation services, the Gillware incident response team breaks the mold. We do whatever is necessary to get you back up and running: not only do we contain the attack as quickly as possible, we also work to recover as much data as we can as well.

Instant Reaction

Gone are the days of waiting for an incident response team to hop on a plane before addressing a breach. Our team coaches you through containment, eradication, and restoration remotely from our offices–saving you time and money.

Clear, No Frills Explanation

Data breaches are stressful enough without having to sift through obtuse reporting. We provide a clear explanation so you can understand how the attack happened as well as how to prevent the next one.

We get you back to where you were

Our data recovery roots and experience ensure your systems are restored to their best-possible state to get you on your feet quickly and painlessly.

Do you have questions about a suspected or discovered Office 365 attack or about our Office 365 incident response services in general?