Seus dispositivos IoT correm o risco de serem hackeados. Como você pode evitá-lo?

Due diligence should always be a part of the process before allowing IoT devices onto a network. Is the firmware updated? Does the manufacturer still have support for the product? Does the manufacturer prioritize security over sales of their IoT device? Too many devices are insecure because the manufacturers aren't putting enough effort into protecting their devices and the clients that use them. Always take caution.

I suggest securing IoT devices by following these 9 steps: 1)Update devices with the latest firmware 2)Implement two-factor authentication (if your IoT system supports it) 3)Isolate IoT devices on a dedicated network 4)Turn off non-essential functionalities 5)Ensure the physical security of these devices 6)Conduct regular pen test for discovering security flaws 7)Use NDR and EDR (if your IoT system supports it) for network/device monitoring, 8)Educate users about security risks 9)Integrate Cyber Threat Intelligence and a SOC, which offer real-time monitoring and a quick response to threats

To prevent your IoT devices from being hacked, regularly update their firmware, which is crucial for fixing vulnerabilities that hackers could exploit. Check the manufacturer's website or app for the latest firmware versions and follow the instructions to install updates. Enabling automatic updates can further streamline this process. Additionally, use strong, unique passwords for device access, and change default credentials. Implement network segmentation to isolate IoT devices from critical network segments. Disable unnecessary features and services to reduce potential attack surfaces. Employ robust encryption for data transmission to protect the integrity and confidentiality of your data.

The hardware has to be secure by design with no redundant or un-utilised access ports exposed. Firmware updated should be restricted to factory premises and if cheap products complete change is recommended than a push of any policy or update. Main focus has to be on the edge devices where the data processing takes place than the node points which are mainly sensors for Tx/Rx.

Some more thoughts: 1) if possible use 2FA/MFA 2) Consider using a dedicated IoT network 3) Use IoT apps originating only from reputable sources. 4) If possible centralize security management via cloud services. 5) Use dedicated sandboxes 6) Use extra cloud or on-prem access controls

One of the challenging things about IOT devices inside your home or Enterprise is that the majority of IOT devices leave the factory with chips that are inherently not secure and can’t be secured. In the rush to crank out chips and devices faster and cheaper - most devices don’t have the ability - not enough memory, power, and/or compute power to run elementary security algorithms (AES or Triple DES) on the device. In many instances, the biggest challenge to Zero Trust in any Enterprise is the inherent lack of security in most IOT devices. Buyers assume inherent security, but they’d be wrong. IT buyers and consumers need to start treating all IOT devices more like people in terms of ‘trust’ and security.

Regularly updating passwords helps counteract vulnerabilities and reduces the risk of unauthorized access. With the proliferation of IoT devices, unique and frequently changed passwords contribute significantly to overall cybersecurity. This practice ensures that even if one password is compromised, the potential damage is limited, reinforcing the security of interconnected devices in the IoT ecosystem.

Just change those passwords ASAP and make sure they’re like, really strong, with lots of letters, numbers, and symbols. Oh, and there are these cool things called password managers that can help you keep track of all your passwords safely. Try 1password…

That cool new "plug and play" iOT device you just got that was so easy to set up? This may be the biggest security risk on your network. Product designers want you to have a seamless and easy experience setting up your new device, and that's the priority over security. That super easy password they gave you to get started? Change it immediately to a STRONG password. Default passwords are easily accessible, and don't provide security. Strong passwords are inconvenient, but required to keep you safe online.

Certain other probable technical and strategic approach for protecting IoT devices 1. Network Segmentation: prevent lateral movement by isolating IoT devices from critical business 2. Strong Encryption : apply TLS latest version to encrypt data during transition ( Data In Transit) from cloud , legacy and IoT devices 3. Disable Unused Services: don’t keep any door opened 4. Secure Boot Operation: Booting the system most Secure way : no device tampering and only authorized firmware is authorized to run 5. Physical Access : protect IoT devices from physical damage and tampering

VPNs create encrypted tunnels for data transmission, adding an extra layer of protection against potential hacking threats. By routing IoT device traffic through a VPN, users can establish a secure connection, safeguarding sensitive information from unauthorized access. This emerging trend reflects a proactive approach to enhancing the privacy and security of IoT ecosystems in the face of evolving cyber threats.

IoT devices are usually distributed and transmit data towards Internet. Instead of exposing each IoT device to Internet, it is better to make them send data to an Edge device which can collate before sending it towards the Internet. Given the well-known issues with VPNs (credential stuffing, exposure of entire network, etc.), it is suggested to apply Zero Trust Security principles against Edge and Cloud workloads. Make these resources establish outbound connections only and close all inbound connection requests at the firewall level. Considering criticality of few businesses such as Utilities, Zero Trust Security principles are going to become mandatory in coming years. Additionally, apply end-to-end encryption to ensure privacy of data.

Implementing a VPN for IoT devices is akin to having an invisible, armored convoy for your data. It's a protective bubble, shielding your internet traffic from prying eyes. A VPN encrypts and reroutes your digital footprint, masking your location and IP address. Think of it as a cloaking device, making your IoT devices ghost-like to hackers. Whether it's for bypassing geo-restrictions or evading digital snoopers, a VPN is your personal digital bodyguard. Choose a trusted provider, set it up, and your IoT devices are virtually untraceable. Using a VPN isn't just about privacy; it's about empowering your digital presence.

Keeping your IoT devices in a segmented network, so that they are not exposed to your crown jewel devices at home (cell phones, laptops, etc). Within that segment, you can configure a VPN to connect to that segment to direct all their traffic there.

The benefits of using a VPN are as below. Security: A VPN encrypts your traffic, making it more difficult for hackers to intercept or tamper with your data. Privacy: A VPN hides your IP address and location, making it more difficult to track your online activity. Access: A VPN can help you access geo-restricted content or bypass censorship. Speed: A VPN can sometimes improve your internet speed by routing your traffic through a server that is closer to you. However, there are also some potential drawbacks too while using a VPN. Speed: A VPN can sometimes slow down your internet speed Security: Some VPN providers may log your traffic or sell your data to third-party companies. Cost: VPN services can be expensive.

Mitigating the risk of IoT device hacking involves a strategic approach, including the disabling of unnecessary features. By deactivating non-essential functionalities, such as unused ports or services, users can minimize potential entry points for cyber attackers. This practice reduces the attack surface and enhances the overall security posture of IoT devices. Regularly reviewing and disabling unnecessary features ensures that the devices only operate with essential functionalities, reducing vulnerabilities and fortifying against potential security breaches.

Disabling unneeded features on IoT devices is like decluttering your digital space – less is more. Each unused feature, be it remote access or voice control, is a potential backdoor for hackers. Imagine shutting these doors, reducing the pathways for digital intruders. Turn off what you don't use, and suddenly your device is less of a target, more of a fortress. It's about making smart choices, like choosing not to leave unnecessary windows open in a storm. Disabling features isn't limiting; it's strategically fortifying your digital realm.

It's about minimizing the potential attack surface, much like securing a fortress by sealing off unused entrances. Overlooking these features has often been a vulnerability waiting to be exploited. Conduct a thorough analysis of the device functionalities. Encourage a proactive approach to feature management. Create awareness around the principle of least privilege – granting only the necessary permissions. Implement regular audits to ensure that only essential features are active. Don’t forget that disabling unnecessary features isn't just a one-time task but an ongoing process.

Furthermore, disabling unnecessary features on IoT devices not only enhances security but also contributes to a streamlined and efficient device operation. It's a proactive measure that not only safeguards your privacy but also optimizes the device's performance, ensuring that computing resources are allocated where they're truly needed. By customizing the functionalities to align with your specific requirements, you not only reduce the potential vulnerabilities but also create a more tailored and user-centric IoT experience.

depending on the organization, the below features also can be disabled. Disabling automatic updates: Instructions to disable automatic updates on IoT devices Disabling device analytics: Steps to opt-out of device analytics on different devices

An IDS monitors network traffic for suspicious activities and potential security threats. By deploying an IDS tailored to IoT environments, users gain real-time insights into potential breaches, enabling swift response and mitigation. This robust security measure adds an additional layer of protection, enhancing the overall resilience of IoT ecosystems against cyber threats and unauthorized access.

Installing an IDS (Intrusion Detection System) on your network is like having a vigilant digital watchdog. It's the eyes and ears, constantly scanning for unusual behavior in your digital backyard. An IDS is your early warning system, alerting you to potential intruders. It works by analyzing patterns, signatures, and anomalies in your network traffic. Imagine it as a cyber detective, sniffing out the smallest hint of digital mischief. Configuring an IDS to your specific needs turns it into a personalized guardian, protecting your IoT ecosystem. An IDS isn't just a tool; it's your proactive partner in cyber defense.

This article underscores the critical role of an Intrusion Detection System (IDS) in safeguarding IoT devices, which is increasingly important given the proliferation of IoT technology. In addition to the points raised, it's essential to consider the integration of IDS with other security systems like firewalls and intrusion prevention systems for a more comprehensive security posture.

Isolate the network where your IoTs are hosted and add an IDS/IPS solution in that network. This helps identify Zero-day attacks (malware not previously identified) by detecting anomalies in your network traffic. If you have an IPS solution it will sit inline in your network and also block the malicious traffic. In my past experience as a consultant we have come across CCTVs at the client-side which have been found to send feed outside to unknown public IPs. These have been detected due to active network monitoring.

To safeguard your IoT devices from hacking, consider implementing an Intrusion Detection System (IDS). This tool, available in software or hardware, scrutinizes network traffic for unusual or harmful activities, providing alerts to potential threats. By spotting anomalies, signatures, or attack behaviors, an IDS aids in thwarting hackers' attempts on your IoT devices. Moreover, it facilitates attack response by blocking attackers, segregating compromised devices, or issuing alerts. Selecting the right IDS type and setup for your specific network and device requirements is crucial for effective protection.

"choose your IoT devices carefully." Look for devices that implement modern standards for authentication, logging, and access. Exert pressure on the vendors that don't prioritize security, or modern best practices. Do not put your IoT on your corporate network, and avoid giving your IoT network open access to the internet.

IoT devices inherently have less processing power as compared to other devices that come installed with multicore processors. This limits the amount of controls that can be implemented. However it should be endeavoured to install the following for securing data :- 1. Define a patch management policy for timely updation of firmware. 2. Install VPN for securing data in transit. 3. Use lightweight encryption algorithms like Ascon to encrypt data. 4. Install OT SOC to monitor the logs of transaction from the devices and to identify any breaches. 5. Harden the system to remove unnecessary features and reduce attack surface. 6. Include other network flow analysis tools like IPS and IDS. 7. Have a separate OT network.

The safest IoT devices are the ones that are not connected to the internet. The smallest attack surface is the one that you design out of the system. I do not need my washing machine connected to the internet, even though I could enable some features with it. It would then become an unpatched liability for no good reason.

Para proteger dispositivos IoT de accesos no deseados, es importante tener en cuenta medidas básicas de seguridad. Esto incluye la sustitución de contraseñas predeterminadas por otras complejas, actualizaciones periódicas del firmware para mitigar vulnerabilidades, uso de conexiones de red cifradas, y desactivación de servicios no esenciales para reducir la superficie de ataque. Es importante gestionar meticulosamente los permisos de acceso y emplear soluciones de seguridad especializadas en dispositivos IoT para mejorar la defensa contra amenazas.

I think apart from all this we should consider: - Implement robust encryption protocols to secure communication between IoT devices and the network. This prevents unauthorized access and protects data in transit. - Conduct regular security audits and vulnerability assessments on IoT devices. Identify and address security weaknesses to mitigate potential risks. - Choose IoT devices that adhere to industry security standards. Compliance with established standards enhances the overall security posture of the devices. - Develop and implement an incident response plan specific to IoT security incidents. This plan should outline steps to be taken in the event of a security breach.