Blog - Aureole Systems

How to Prepare Microsoft 365 Permissions for a Safe Copilot Rollout

A safe Microsoft Copilot rollout starts with a permissions audit before any trial license is enabled. Microsoft 365 Copilot retrieves files, emails, and chats using each user’s existing Microsoft 365 permissions. In most tenants, those permissions are broader than anyone has mapped, because access tends to accumulate across years of projects, ad-hoc sharing, and staff changes. Microsoft itself now recommends a specific cleanup before any trial: map who currently has access to what, fix the permissions that have drifted out of scope, and apply sensitivity labels to confidential content.

This post covers what Microsoft 365 Copilot does with permissions, where oversharing tends to show up in a typical tenant, the kinds of content Copilot can return when permissions are broad, how to run the audit Microsoft recommends, and what to fix before any rollout.

5 Microsoft 365 Settings Worth Checking in Your Tenant

Microsoft has tightened several default settings in Microsoft 365 over the past few years. Newer tenants get more protection out of the box than tenants set up before 2022 or so. The problem is that legacy configurations stay in place. A setting changed for new tenants in 2024 doesn’t retroactively change in yours, and historical user consents, inbox rules, or sharing links granted before the change are still active.

Here are five settings worth checking in your tenant, especially if it’s more than two or three years old, was set up by a previous IT provider, or has not been audited in a while.

A few caveats before we start. Some of these settings require Microsoft 365 Business Premium, E3, or E5 licensing to change, so if a toggle is grayed out, your license tier is most likely the reason. A couple of these changes will generate support tickets from your team because they change how something already works. None of them need to be flipped all at once.

What Immutable Backup Means on Your Cyber Insurance Form

Cyber insurance applications include a question that catches a lot of small business owners off guard: “Do you maintain immutable, air-gapped, or offline backups of your critical business data?”

Carriers added that question to renewal forms because ransomware operators worked out that the fastest way to force a payout is to wipe the backups first and encrypt everything else after. CISA, the AFP, and the Australian Signals Directorate have all documented this pattern as one of the most common moves in current ransomware playbooks. A business whose backup copies can be deleted using the same admin credentials an attacker just stole has no recovery path other than paying the ransom.

This post covers what immutable backup means, three common backup setups that do not qualify, the questions to send your IT provider before you sign the form, and what to do if your honest answer is no.

Why Human Habits Are Your Biggest Security Risk

Most cyberattacks do not start with a sophisticated intrusion. They start with a click on a personal email, a reused password, or a file uploaded to a familiar cloud service because the approved option felt slower.

The Verizon Data Breach Investigations Report found that 68% of breaches involve the human element.

Not a zero-day exploit. Not a brute-force attack on a hardened system. Human habits, in the course of an ordinary working day.

For businesses running cloud-based workflows across multiple devices, the personal and professional overlap is now the rule. Understanding where that overlap creates risk is no longer optional. It is a core part of modern security strategy.

What is Passkey Migration and How Can It Help Your Team Eliminate Passwords?

Your team locks everything down with passwords. Some are strong, some are not, and most have been reused somewhere over the years. Every month, IT fields reset requests. Every year, the same breach reports list stolen credentials as the leading cause.

There is now a more effective path, and it does not require users to memorise anything.

Passkey migration is the process of moving from traditional passwords to passkeys: a form of phishing-resistant authentication that uses your device’s built-in security instead of a shared secret.

It is practical, it is already supported by most major platforms, and the business case is hard to argue with.

Why Passwords Are Still the Biggest Risk

Passwords have had sixty years to prove themselves. The data tells a consistent story.

More than 80% of data breaches involve compromised credentials, a figure that has remained consistent year after year, according to the Verizon Data Breach Investigations Report.

The underlying problem has not changed: passwords are shared secrets that must be stored somewhere, and secrets that get stored eventually get stolen.

Multi-factor authentication (MFA) reduced that risk significantly and remains an important baseline. But SMS-based codes, still the most common form of MFA, have a known weakness.

Modern phishing kits can intercept a one-time code in real time: a convincing fake login page captures both the password and the code, and uses them on the real site before the session expires.

Phishing-resistant authentication closes that gap by design. Passkeys make it technically impossible for a fraudulent page to trigger login on your real device, because the credential is cryptographically bound to the legitimate domain.

The “Zombie” SaaS Audit: Finding the 3 Apps Your Former Employees Still Access

The Zombie Account SaaS Audit: Finding the 3 Apps Your Former Employees Still Access

Someone leaves the company on a Friday. By Monday, their email account is disabled, and their laptop is back in the pile.

What nobody checks is their login to the project management tool they signed up for in Q3, the cloud storage folder they shared with a contractor, or the CRM access they still have from two roles ago.

Three months later, those sessions are still active.

This is how zombie accounts form. nNot through negligence, but through an offboarding process built around corporate IT assets that no longer reflects how people actually use software.

The average company now runs more than 100 SaaS applications. Most offboarding checklists were written when there were three.

What a Zombie Account Actually Is

A zombie account is an active login that belongs to someone who no longer works for you. The name is informal. The risk is not.

What makes zombie accounts particularly dangerous is that they are valid credentials.

There is nothing to detect. The access was granted intentionally, and the system has no reason to question it. If a former employee walks back in through that door, or if their credentials are compromised after they leave, the access is there waiting.

Industry research finds that 50% of organisations have discovered former employees still accessing SaaS applications months after their departure date.

For most of those organisations, the discovery was accidental rather than the result of a deliberate audit.

Stop the Bleeding: How Revoking Admin Rights Eliminates Support Tickets

Stop the Bleeding: How Revoking Admin Rights Eliminates Support Requests

The most time-consuming ticket in your queue is rarely a hardware failure. It’s the PC infection that started when a user installed something they shouldn’t have been able to. Or it’s the broken configuration left behind after someone changed a setting IT can’t trace.

Local administrator rights (the ability to install software, modify system settings, and override security controls) are given to end users far more often than the risk warrants.

The usual reason is efficiency.

The practical result is the opposite. Machines that drift from baseline, infections that spread before they are caught, and remediation requests nobody planned for. Revoking local admin rights directly removes the root cause of most of those requests.

Is Your Invoice a Deepfake? Securing Your Accounts Payable Process Against Voice and Email Cloning

It’s a statistic that sends a shiver down the backs of SME owners, managers and employees.

According to the Australian Federal Police report, business email compromise (BEC) cost Australian businesses more than $152.6 million last year.

This makes it one of the most financially damaging cybercrimes on record.

AI has made these attacks harder to detect. The question for Accounts Payable (AP) teams is no longer whether they can identify suspicious requests. It is whether the processes around payments make fraud difficult regardless of how convincing it looks.

Adversary-in-the-Middle Attacks: How Phishing Sites Steal Your Active Login

You click a link, sign in, approve the MFA prompt, and get on with your day. Completely unaware that someone else just logged into your account at the same moment.

That scenario surprises many businesses, particularly those that rely on multi-factor authentication (MFA) to protect cloud accounts. But this is exactly how Adversary-in-the-Middle (AiTM) phishing attacks work.

Rather than stealing passwords for later use, these attacks silently hijack an already-authenticated session in real time.

MFA remains a core control, and getting it implemented correctly is still a critical first step for any business.

But AiTM attacks exploit something MFA was never designed to protect: the trusted session that exists after authentication has already completed.

The “Session Cookie” Hijack: Why MFA Can’t Always Save You

MFA is a strong front-door lock. But it’s not the only thing that decides whether someone can get in.

After you sign in, your browser keeps you logged in using a session token (often stored as a cookie). It’s the digital version of a wristband at an event: once you’ve been checked, the wristband proves you belong there. If an attacker steals that wristband, they may not need to beat your MFA prompt at all.

That’s the core of session cookie hijacking. The attacker isn’t “cracking” MFA. They’re skipping it by replaying your already authenticated session.

This isn’t a reason to stop using MFA. It’s a reason to stop treating MFA as the finish line.

When sessions can be stolen, the practical defence shifts to layered controls: phishing-resistant sign-ins, device hygiene, tighter session policies, and detection that catches suspicious access early.

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