WARNING! Sneaky Phishing Campaign Targets Office 365 Users

A new phishing campaign that is capable of bypassing current anti-phishing measures has been discovered by the Microsoft Security intelligence team. The campaign, directed at Office 365 users, is more crafty and advanced than previous ones and it involves the use of spoofed sender email addresses.

Microsoft issued out alerts after discovering the active campaign targeted at a lot of organizations using Office 365 products.  The phishing features convincing emails and advanced techniques designed to bypass phishing detection systems.

Hackers behind the campaign used an Office 365 phishing page hosted on a Google cloud web app and combined this with a compromised SharePoint website through which login credentials are stolen.

Phishing Revisited

Phishing generally involves impersonating a trustworthy entity or person to victims with the aim of acquiring sensitive information, login details, credit cards, and company funds. 

Social media websites, banks, IT admins, and high-ranking executives are often the object of impersonation. Phishing is reported to cost businesses billions of dollars per year.

Forms of phishing threats used by cybercriminals including spear phishing, session hijacking, email phishing, link manipulation, and web page or web-based phishing. 

Phishing is used by cybercriminals to compromise organizations’ systems in order to install malware, steal business data and funds from businesses, and create data breaches.  Due to its frequency in cyberattacks, several anti-phishing tools have been developed over the years to protect organizations. 

However, attackers continue to innovate and use new and modified phishing methods to evade business security and get a foothold on target systems. This new phishing campaign discovery is part of the ongoing struggle between cyber security professionals and cybercriminals.

Phishing Campaign Details

1) According to Microsoft Security Team , the newly discovered phishing campaign uses legitimate-looking sender email addresses. Thus, the email sender’s address is insufficient to confirm the real identity of the sender. 

2)  The ongoing phishing campaign also uses spoofed send addresses containing username and domain to impersonate legitimate services and bypass email filters.

3) The original sender address of the discovered email includes a variation of the word “referral” and .com as top-level domain ( TLD ) for spoofing for more persuasive appeal.

4) The group behind this attack uses fake email display names of legitimate services to deceive victims into visiting the included link.

5) The phishing email was designed as a “file share” request purportedly for official reports such as “bonuses” and “pricebooks” in spreadsheet format.

6) Convincing Microsoft logos and branding images are spread throughout the document to convince victims of their origin.

7) Inside the email is one phishing link to Google storage resources that eventually redirects victims to Google App Engine hosted web applications. 

8) A second hidden link is embedded in the main phishing page and it links to a compromised SharePoint site. The URLs require visitors to login in order to access them which is another layer of evading email sandboxes. 

Protect Your Organization

It is recommended that you frequently enroll your employees in phishing awareness training or cybersecurity training. For this particular phishing campaign, employees should be made aware of the nature of the phishing attack and how to recognize and report them. 

In addition, your company should deploy spam filters at the network and system layer to block phishing attempts, regularly change passwords, and increase your browser security settings to block malicious URLs.

Get in touch with SDTEK today to secure your business against phishing attacks.

 

June 17, 2025
Meeting IT security compliance standards is crucial for businesses that handle sensitive data, particularly in industries such as healthcare, finance, defense, and e-commerce. Regulatory frameworks such as HIPAA, CMMC, PCI-DSS, and GDPR exist to help ensure businesses protect customer information and maintain robust cybersecurity practices. Unfortunately, many organizations fall short of these requirements, often due to common, avoidable mistakes. These gaps can result in costly fines, data breaches, and reputational damage, which can significantly impact the business's bottom line and customer trust. 1. Failing to Conduct Regular Risk Assessments The Pitfall: Many businesses overlook the importance of conducting routine risk assessments. Without these, it’s challenging to identify vulnerabilities or evaluate whether your current cybersecurity controls meet compliance standards. How to Avoid It: Implement a regular risk assessment schedule. Work with a qualified IT provider to evaluate your systems, identify weaknesses, and document remediation plans. These assessments should be performed at least annually, or whenever significant changes to the system occur. 2. Inadequate Employee Training The Pitfall: Your employees are your first line of defense—and often your most significant vulnerability. A common compliance issue arises when businesses fail to train staff on cybersecurity best practices or on handling sensitive data appropriately. How to Avoid It: Invest in ongoing cybersecurity awareness training. Ensure employees understand how to recognize phishing emails, create strong passwords, and report any suspicious activity. Training should be updated regularly to reflect current threats and compliance requirements. 3. Improper Data Handling and Storage The Pitfall: Storing sensitive data in unsecured locations, failing to encrypt information, or retaining data longer than necessary are significant compliance risks. These practices are often flagged during audits. How to Avoid It: Adopt data classification policies that define how different types of data should be handled; encrypt sensitive data both at rest and in transit. Establish clear data retention policies and ensure that obsolete data is disposed of securely. 4. Lack of Incident Response Planning The Pitfall: When a security incident occurs, time is of the essence. Many businesses lack a documented incident response plan, or their existing plan hasn’t been thoroughly tested. This can lead to delayed responses, increased damage, and regulatory penalties. How to Avoid It: Develop a formal incident response plan that includes roles, responsibilities, communication protocols, and steps for containment and recovery. Run simulated breach scenarios with your IT team to ensure everyone knows how to respond effectively. 5. Using Outdated Software or Systems The Pitfall: Running outdated operating systems, software, or firmware is a common issue that can lead to compliance failures. Unsupported technologies are more vulnerable to exploitation. How to Avoid It: Keep all systems and applications up to date with the latest patches. Use automated tools to track software versions and receive alerts about end-of-life technologies. Schedule regular maintenance windows to apply updates and upgrades. 6. Insufficient Access Controls The Pitfall: Allowing too many employees access to sensitive data—or failing to revoke access when it’s no longer needed—can lead to data breaches and non-compliance. How to Avoid It: Implement role-based access controls and follow the principle of least privilege. This principle means that each user should have the minimum level of access necessary to perform their job. Regularly audit user accounts and permissions to ensure access is current and appropriate. Use multi-factor authentication (MFA) to add an additional layer of protection. 7. Neglecting Third-Party Vendor Risks The Pitfall: Businesses often overlook the fact that their compliance responsibilities extend to third-party vendors. If a vendor mishandles your data, you could still be held accountable. How to Avoid It: Vet third-party vendors carefully. Ensure they meet the same compliance standards as your business and include security requirements in your contracts. Conduct periodic audits or request compliance certifications from your vendors. 8. Failing to Document Policies and Procedures The Pitfall: Even if your security practices are strong, failing to document your compliance policies can result in audit failures. Regulators want to see evidence that you have formal processes in place. How to Avoid It: Create and maintain clear documentation for all compliance-related policies, including data protection, access control, incident response, and employee training. Make these documents easily accessible for audits and regularly review them to ensure updates are current. Conclusion Compliance with IT security standards is not a one-time project—it requires ongoing attention, regular updates, and a proactive approach to maintain effectiveness. By understanding and addressing these common pitfalls, your business can stay ahead of regulatory requirements, strengthen its security posture, and reduce the risk of costly incidents. This ongoing attention is crucial to maintaining your business's security and audit readiness. If you’re unsure whether your business is meeting current IT compliance standards, professional support can help. Contact SDTEK today to schedule a compliance assessment and learn how our IT services can keep your business secure and audit-ready. With our support, you can navigate the complex landscape of IT security compliance with confidence.
April 9, 2025
In today’s digital-first world, cybersecurity isn’t just a luxury—it’s a necessity. Whether you run a small startup or a growing enterprise in Fort Wayne , protecting your business’s data, systems, and clients is essential for long-term success. From ransomware attacks to phishing scams, cyber threats are evolving every day, and the best way to stay ahead of them is by partnering with a reliable IT services provider that understands the unique needs of local businesses. Here’s why investing in professional business IT support is one of the smartest decisions Fort Wayne businesses can make—and how working with SDTEK helps protect your operations, your data, and your reputation.