SecurityBrief UK - Technology news for CISOs & cybersecurity decision-makers

Instant Messaging (IM) stories

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Custodia warns of AI record-keeping risk in finance

Last week
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uc
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risk & compliance
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genai
Custodia says financial firms must widen record-keeping to cover collaboration tools, messaging apps and AI-generated content as regulators step up scrutiny.
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Stable call centre KPIs mask growing customer anger

Last month
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uc
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cx
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martech
UK contact centres keep KPIs steady, but MaxContact warns a growing perception gap as frustrated customers switch providers in droves.
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OpenAI unveils GPT-5.3 Instant with fewer refusals

Last month
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martech
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personalisation
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cdp
OpenAI unveils GPT-5.3 Instant, promising smoother, more direct ChatGPT conversations, fewer refusals and improved accuracy on web-sourced facts.
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WhatsApp unveils lockdown mode for high-risk users

Wed, 28th Jan 2026
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data protection
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surveillance
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encryption
WhatsApp launches Strict Account Settings, a lockdown mode offering tighter privacy and security for journalists and other high‑risk users.
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LinkedIn DMs abused to spread Python-based malware

Wed, 21st Jan 2026
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firewalls
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endpoint protection
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devops
Attackers are abusing LinkedIn private messages to deliver Python-based malware via booby-trapped archives, ReliaQuest has warned.
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Varonis acquires SlashNext for up to USD $150 million to boost AI email security

Fri, 5th Sep 2025
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uc
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hybrid cloud
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cloud security
Varonis has acquired AI-driven email security firm SlashNext for up to USD $150 million, enhancing its threat detection across emails and messaging platforms.
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Hornetsecurity launches AI cyber assistant for Microsoft 365

Fri, 20th Jun 2025
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uc
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semiconductors
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cloud security
Hornetsecurity unveils an AI Cyber Assistant within 365 Total Protection Plan 4 to boost Microsoft 365 security with automated email and Teams threat defence.
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Email still vital for business despite messaging app surge

Wed, 11th Jun 2025
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email security
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email
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im
Despite instant messaging growth, 48% of IT leaders say email remains the top channel for vital business communications worldwide.
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TP report shows Gen Z prefer interactive communication

Fri, 4th Apr 2025
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cx
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martech
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digital engagement
A new report from TP reveals that Generation Z favours interactive communication, posing challenges for businesses catering to this tech-savvy cohort.
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Grandstream releases two new models in GCC6000 Series

Thu, 5th Sep 2024
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cloud services
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grandstream
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file sharing
Grandstream expands its GCC6000 Series with the new GCC6010W and GCC6011, offering unified communication, networking, and security solutions for SMEs.
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Australian shoppers want real-time interaction with brands

Fri, 28th Oct 2022
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fintech
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financial systems
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e-commerce
Twilio's survey shows lagging adoption in conversational messaging, an untapped opportunity for brands in the Australian market.
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Zoom expands its platform by adding Zoom Team Chat feature

Wed, 14th Sep 2022
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uc
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open source
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hybrid & remote work
Chat technology helps dispersed teams consolidate workflows, gain efficiencies, and enable people to work better together.
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Kaspersky uncovers malicious version of Whatsapp mod

Thu, 26th Aug 2021
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application security
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cybersecurity
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apps
Malicious FMWhatsapp mod discovered spreading Triada mobile Trojan, leaving users vulnerable to illegal activity.
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Messaging app used to control and distribute malware

Mon, 26th Apr 2021
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malware
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cybersecurity
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im
Hackers are using instant messaging app Telegram for remote control and distribution of malware, according to Check Point Research.
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When good tech goes bad - the challenge of complexity

Fri, 9th Nov 2018
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opinion
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im
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simplify work
Beautiful system tapestries have created confusing labyrinths that people have to navigate just to get their job done, wasting time and energy.
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NHS staff breaking data security policies every day with WhatsApp

Wed, 14th Mar 2018
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cybersecurity
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healthtech
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whatsapp
The 'unsustainable' issue of NHS staff using consumer instant messaging services is actually much bigger than has been previously reported.