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Overview:

In today’s digital landscape, safeguarding personal data and communications is more crucial than ever. WhatsApp, as one of the world’s leading messaging platforms, consistently enhances its security features to protect user interactions, offering a seamless and private messaging experience

App Lock: Secure Access with Biometric Authentication

To fortify security at the device level, WhatsApp offers an app lock feature, enabling users to protect their app with biometric authentication such as fingerprint or Face ID. This feature ensures that only authorized users can access the app, adding an additional layer of protection to private conversations.

How to Enable App Lock:

1. Open WhatsApp and navigate to Settings.
2. Select Privacy.
3. Scroll down and tap App Lock.
4. Activate Fingerprint Lock or Face ID and follow the on-screen instructions.

Chat Lock: Restrict Access to Private Conversations

WhatsApp allows users to lock specific chats, moving them to a secured folder that requires biometric authentication or a passcode for access. This feature is ideal for safeguarding sensitive conversations from unauthorized viewing.

How to Lock a Chat:

1. Open WhatsApp and select the chat to be locked.
2. Tap on the three dots (Android) or More Options (iPhone).
3. Select Lock Chat
4. Enable the lock using Fingerprint or Face ID.

Privacy Checkup: Strengthening Security Preferences

The privacy checkup tool assists users in reviewing and customizing essential security settings. It provides guidance on adjusting visibility preferences, call security, and blocked contacts, ensuring a personalized and secure communication experience.

How to Run Privacy Checkup:

1. Open WhatsApp and navigate to Settings.
2. Tap Privacy.
3. Select Privacy Checkup and follow the prompts to adjust settings.

Automatic Blocking of Unknown Accounts and Messages

To combat spam and potential security threats, WhatsApp automatically restricts unknown accounts that send excessive messages. Users can also manually block or report suspicious contacts to further enhance security.

How to Manage Blocking of Unknown Accounts:

1. Open WhatsApp and go to Settings.
2. Select Privacy.
3. Tap to Advanced 
4. Enable Block unknown account messages

IP Address Protection in Calls

To prevent tracking and enhance privacy, WhatsApp provides an option to hide IP addresses during calls. When enabled, calls are routed through WhatsApp’s servers, preventing location exposure via direct connections.

How to Enable IP Address Protection in Calls:

1. Open WhatsApp and go to Settings.
2. Select Privacy, then tap Advanced.
3. Enable Protect IP Address in Calls. 

Disappearing Messages: Auto-Deleting Conversations

Disappearing messages help maintain confidentiality by automatically deleting sent messages after a predefined period—24 hours, 7 days, or 90 days. This feature is particularly beneficial for reducing digital footprints.

How to Enable Disappearing Messages:

1. Open the chat and tap the Chat Name.
2. Select Disappearing Messages.
3. Choose the preferred duration before messages disappear.

View Once: One-Time Access to Media Files

The ‘View Once’ feature ensures that shared photos and videos can only be viewed a single time before being automatically deleted, reducing the risk of unauthorized storage or redistribution.

How to Send View Once Media:

1. Open a chat and tap the attachment icon.
2. Choose Camera or Gallery to select media.
3. Tap the ‘1’ icon before sending the media file.

Group Privacy Controls: Manage Who Can Add You

WhatsApp provides users with the ability to control group invitations, preventing unwanted additions by unknown individuals. Users can restrict group invitations to ‘Everyone,’ ‘My Contacts,’ or ‘My Contacts Except…’ for enhanced privacy.

How to Adjust Group Privacy Settings:

1. Open WhatsApp and go to Settings.
2. Select Privacy and tap Groups.
3. Choose from the available options: Everyone, My Contacts, or My Contacts Except

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Conclusion

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WhatsApp continuously enhances its security features to protect user privacy and ensure safe communication. With tools like App Lock, Chat Lock, Privacy Checkup, IP Address Protection, and Disappearing Messages, users can safeguard their data and interactions. Features like View Once and Group Privacy Controls further enhance confidentiality. By enabling these settings, users can maintain a secure and private messaging experience, effectively reducing risks associated with unauthorized access, tracking, and digital footprints. Stay updated and leverage these features for enhanced security.

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Introduction

The world has been riding the wave of technological advancements, and the fruits it has born have impacted our lives. Technology, by its virtue, cannot be quantified as safe or unsafe it is the application and use of technology which creates the threats. Its times like this, the importance and significance of policy framework are seen in cyberspace. Any technology can be governed by means of policies and laws only. In this blog, we explore the issues raised by the EU for the tech giants and why the Indian Govt is looking into probing Whatsapp.

EU on Big Techs

Eu has always been seen to be a strong policy maker for cyberspace, and the same can be seen from the scope, extent and compliance of GDPR. This data protection bill is the holy grail for worldwide data protection bills. Apart from the GDPR, the EU has always maintained strong compliance demographics for the big tech as most of them have originated outside of Europe, and the rights of EU citizens come into priority above anything else.

New Draft Notification

According to the draft of the new notification, Amazon, Google, Microsoft and other non-European Union cloud service providers looking to secure an EU cybersecurity label to handle sensitive data can only do so via a joint venture with an EU-based company. The document adds that the cloud service must be operated and maintained from the EU, all customer data must be stored and processed in the EU, and EU laws take precedence over non-EU laws regarding the cloud service provider. Certified cloud services are operated only by companies based in the EU, with no entity from outside the EU having effective control over the CSP (cloud service provider) to mitigate the risk of non-EU interfering powers undermining EU regulations, norms and values.

This move from the EU is still in the draft phase however, it is expected to come into action soon as issues related to data breaches of EU citizens have been reported on numerous occasions. The document said the tougher rules would apply to personal and non-personal data of particular sensitivity where a breach may have a negative impact on public order, public safety, human life or health, or the protection of intellectual property.

How will it secure the netizens?

Since the EU has been the leading policy maker in cyberspace, it is often seen that the rules and policies of the EU are often replicated around the world. Hence this move comes at a critical time as the EU is looking towards safeguarding the EU netizens and the Cyber security industry in the EU by allowing them to collaborate with big tech while maintaining compliance. Cloud services can be protected by this mechanism, thus ensuring fewer instances of data breaches, thus contributing to a dip in cyber crimes and attacks.

The Indian Govt on WhatsApp

The Indian Govt has decided to probe Whatsapp and its privacy settings. One of the Indian Whatsapp users tweeted a screenshot of WhatsApp accessing the phone’s mic even when the phone was not in use, and the app was not open even in the background. The meta-owned Social messaging platform enjoys nearly 487 million users in India, making it their biggest market. The 2018 judgement on Whatsapp and its privacy issues was a landmark judgement, but the platform is in violation of the same.

The MoS, Ministry of Electronics and Information Technology, Rajeev Chandrashekhar, has already tweeted that the issue will be looked into and that they will be punished if the platform is seen violating the guidelines. The Digital Personal Data Protection Bill is yet to be tabled at the parliament. Still, despite the draft bill being public, big platforms must maintain the code of conduct to maintain compliance when the bill turns into an Act.

Threats for Indian Users

The Indian Whatsapp user contributes to the biggest user base un the world, and still, they are vulnerable to attacks on WhatsApp and now WhatsApp itself. The netizens are under the following potential threats –

• Data breaches
• Identity theft
• Phishing scams
• Unconsented data utilisation
• Violation of Right to Privacy
• Unauthorised flow of data outside India
• Selling of data to a third party without consent

The Indian netizen needs to stay vary of such issues and many more by practising basic cyber safety and security protocols and keeping a check on the permissions granted to apps, to keep track of one’s digital footprint.

Conclusion

Whether it’s the EU or Indian Government, it is pertinent to understand that the world powers are all working towards creating a safe and secured cyberspace for its netizens. The move made by the EU will act as a catalyst for change at a global level, as once the EU enforces the policy, the world will soon replicate it to safeguard their cyber interests, assets and netizens. The proactive stance of the Indian Government is a crucial sign that the things will not remain the same in the Indian Cyber ecosystem, and its upon the platforms and companies to ensure compliance, even in the absence of a strong legislation for cyberspace. The government is taking all steps to safeguard the Indian netizen, as the same lies in the souls and spirit of the new Digital India Bill, which will govern cyberspace in the near future. Still, till then, in order to maintain the synergy and equilibrium, it is pertinent for the platforms to be in compliance with the laws of natural justice.

Introduction

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Cyber-attacks are another threat in this digital world, not exclusive to a single country, that could significantly disrupt global movements, commerce, and international relations all of which experienced first-hand when a cyber-attack occurred at Heathrow, the busiest airport in Europe, which threw their electronic check-in and baggage systems into a state of chaos. Not only were there chaos and delays at Heathrow, airports across Europe including Brussels, Berlin, and Dublin experienced delay and had to conduct manual check-ins for some flights further indicating just how interconnected the world of aviation is in today's world. Though Heathrow assured passengers that the "vast majority of flights" would operate, hundreds were delayed or postponed for hours as those passengers stood in a queue while nearly every European airport's flying schedule was also negatively impacted.

The Anatomy of the Attack

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The attack specifically targeted Muse software by Collins Aerospace, a software built to allow various airlines to share check-in desks and boarding gates. The disruption initially perceived to be technical issues soon turned into a logistical nightmare, with airlines relying on Muse having to engage in horror-movie-worthy manual steps hand-tagging luggage, verifying boarding passes over the phone, and manually boarding passengers. While British Airways managed to revert to a backup system, most other carriers across Heathrow and partner airports elsewhere in Europe had to resort to improvised manual solutions.

The trauma was largely borne by the passengers. Stories emerged about travelers stranded on the tarmac, old folks left barely able to walk without assistance, and even families missing important connections. It served to remind everyone that the aviation world, with its schedules interlocked tightly across borders, can see even a localized system failure snowball into a continental-level crisis.

Cybersecurity Meets Aviation Infrastructure

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In the last two decades, aviation has become one of the more digitally dependent industries in the world. From booking systems and baggage handling issues to navigation and air traffic control, digital systems are the invisible scaffold on which flight operations are supported. Though this digitalization has increased the scale of operations and enhanced efficiency, it must have also created many avenues for cyber threats. Cyber attackers increasingly realize that to target aviation is not just about money but about leverage. Just interfering with the check-in system of a major hub like Heathrow is more than just financial disruption; it causes panic and hits the headlines, making it much more attractive for criminal gangs and state-sponsored threat actors.

The Heathrow incident is like the worldwide IT crash in July 2024-thwarting activities of flights caused by a botched Crowdstrike update. Both prove the brittleness of digital dependencies in aviation, where one failure point triggering uncontrollable ripple effects spanning multiple countries. Unlike conventional cyber incidents contained within corporate networks, cyber-attacks in aviation spill on to the public sphere in real time, disturbing millions of lives.

Response and Coordination

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Heathrow Airport first added extra employees to assist with manual check-in and told passengers to check flight statuses before traveling. The UK's National Cyber Security Centre (NCSC) collaborated with Collins Aerospace, the Department for Transport, and law enforcement agencies to investigate the extent and source of the breach. Meanwhile, the European Commission published a statement that they are "closely following the development" of the cyber incident while assuring passengers that no evidence of a "widespread or serious" breach has been observed.

According to passengers, the reality was quite different. Massive passenger queues, bewildering announcements, and departure time confirmations cultivated an atmosphere of chaos. The wrenching dissonance between the reassurances from official channel and Kirby needs to be resolved about what really happens in passenger experiences. During such incidents, technical restoration and communication flow are strategies for retaining public trust in incidents.

Attribution and the Shadow of Ransomware

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As with many cyber-attacks, questions on its attribution arose quite promptly. Rumours of hackers allegedly working for the Kremlin escaped into the air quite possibly inside seconds of the realization, Cybersecurity experts justifiably advise against making conclusions hastily. Extortion ransomware gangs stand the last chance to hold the culprits, whereas state actors cannot be ruled out, especially considering Russian military activity under European airspace. Meanwhile, Collins Aerospace has refused to comment on the attack, its precise nature, or where it originated, emphasizing an inherent difficulty in cyberattribution.

What is clear is the way these attacks bestow criminal leverage and dollars. In previous ransomware attacks against critical infrastructure, cybercriminal gangs have extorted millions of dollars from their victims. In aviation terms, the stakes grow exponentially, not only in terms of money but national security and diplomatic relations as well as human safety.

Broader Implications for Aviation Cybersecurity

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This incident brings to consideration several core resilience issues within aviation systems. Traditionally, the airports and airlines had placed premium on physical security, but today, the equally important concept of digital resilience has come into being. Systems such as Muse, which bind multiple airlines into shared infrastructure, offer efficiency but, at the same time, also concentrate that risk. A cyber disruption in one place will cascade across dozens of carriers and multiple airports, thereby amplifying the scale of that disruption. 

The case also brings forth redundancy and contingency planning as an urgent concern. While BA systems were able to stand on backups, most other airlines could not claim that advantage. It is about time that digital redundancies, be it in the form of parallel systems or isolated backups or even AI-driven incident response frameworks, are built into aviation as standard practice and soon. 

On the policy plane, this incident draws attention to the necessity for international collaboration. Aviation is therefore transnational, and cyber incidents standing on this domain cannot possibly be handled by national agencies only. Eurocontrol, the European Commission, and cross-border cybersecurity task forces must spearhead this initiative to ensure aviation-wide resilience.

Human Stories Amid a Digital Crisis

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Beyond technical jargon and policy response, the human stories had perhaps the greatest impact coming from Heathrow. Passengers spoke of hours spent queuing, heading to funerals, and being hungry and exhausted as they waited for their flights. For many, the cyber-attack was no mere headline; instead, it was ¬ a living reality of disruption.

These stories reflect the fact that cybersecurity is no hunger strike; it touches people's lives. In critical sectors such as aviation, one hour of disruption means missed connections for passengers, lost revenue for airlines, and inculcates immense emotional stress. Crisis management must therefore entail technical recovery and passenger care, communication, and support on the ground.

Conclusion

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The cybersecurity crisis of Heathrow and other European airports emphasizes the threat of cyber disruption on the modern legitimacy of aviation. The use of increased connectivity for airport processes means that any cyber disruption present, no matter how small, can affect scheduling issues regionally or on other continents, even threatening lives. The occurrences confirm a few things: a resilient solution should provide redundancy not efficiency; international networking and collaboration is paramount; and communicating with the traveling public is just as important (if not more) as the technical recovery process. 

As governments, airlines, and technology providers analyse the disruption, the question is longer if aviation can withstand cyber threats, but to what extent it will be prepared to defend itself against those attacks. The Heathrow crisis is a reminder that the stake of cybersecurity is not just about a data breach or outright stealing of money but also about stealing the very systems that keep global mobility in motion. Now, the aviation industry is tested to make this disruption an opportunity to fortify the digital defences and start preparing for the next inevitable production.

References

• https://www.bbc.com/news/articles/c3drpgv33pxo
• https://www.theguardian.com/business/2025/sep/21/delays-continue-at-heathrow-brussels-and-berlin-airports-after-alleged-cyber-attack
• https://www.reuters.com/business/aerospace-defense/eu-agency-says-third-party-ransomware-behind-airport-disruptions-2025-09-22/

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