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Analyst/Programmer

To meet the pace and needs for development, the Observatory also recruits Information Technology (IT) contract staff to develop software and applications related to scientific research and services. Here above the analyst programmers shared on their work and personal experience at the Observatory. Organisation chartOfficial recruitment page

How to dispose of old mobile phone safely?

You may have received a new mobile phone as a present. After excitingly transferring data to your new mobile, have you ever considered the following?Can 'Reset to factory settings' completely clear data in your phone?Using 'Low-level formatting' to erase data?Can a second-hand shop recover your deleted data? Any difference between clearing data on phones and computers?To avoid deleted data from being captured from a computer hard disk, people usually use low-level formatting, overwriting, degaussing and physical destruction. Regarding smartphones with a solid-state drive (SSD), clearing data by overwriting or degaussing may not be applicable or effective. There are low-level format tools designed for mobile phone hard disks, but they are rather difficult to use. How to delete all data on a mobile phone safely and with ease? Apple iOS UserRecommendations on the Apple official website:1. Sign out of iCloud, iTunes and App Store.2. If you are switching to a non-Apple phone, deregister iMessage.3. Tap “General” -> “Transfer or Reset [device]” > “Erase All Content and Settings”Android UserThe Android official website recommends resetting your phone to factory settings to remove all data from your phone.Is it that simple?Actually, newer iOS and Android models have the mobile phone storage area encrypted upon manufacturing to enhance data security. In other words, even if you take out the hard disk, you cannot directly read data on the phone without the encryption key. Therefore, even if low-level formatting is not performed, it does not necessarily mean deleted data can be recovered easily.DO remember to back up your phoneHowever, before resetting to factory settings or erasing content from your phone, remember to back up and ensure your phone has been encrypted to protect your data. (Source: Website of Cyber Defender)

Security risks of using free public Wi-Fi

Free Wi-Fi is provided in public places such as government public facilities, shopping malls, hotels or restaurants for the public and customers to access the Internet. However, there are hidden cyber security risks when using public Wi-Fi.Security RisksWhen your mobile device is connected to a fake Wi-Fi hotspot created by hackers or one that is intruded by hackers, hackers can intercept messages and steal your personal data, account information and password, etc. They may also install malware in your devices.  Most routers and smartphones allow users to set whatever service set identifiers (SSID) they want, so it is difficult to distinguish official Wi-Fi hotspots with naked eyes.Which is the official free Wi-Fi? Hackers can fake any SSID (Wi-Fi hotspot name), so it is not easy to determine which Wi-Fi hotspot is really safe to use. Tips to keep you safe on free Wi-Fi- Verify the SSID with the Wi-Fi service providers- Do not connect to unencrypted Wi-Fi hotspots- Do not transmit sensitive information or use online banking services over a public network- Install firewall, anti-virus and anti-malware in mobile devices- Keep the system and applications in mobile devices up-to-date- Remove the Wi-Fi access point after use and turn off auto-connect to Wi-Fi networks or hotspots (The video is in Cantonese) (Source:Website of Cyber Defender)

12 tricks of online romance scammers

The police have recently cracked down on an online romance fraud syndicate and seized a “12-step online dating guide” believed to be circulated within the group to showcase how to spot and ensnare potential victims. Let's take a look at the 12 tricks of online romance scammers listed below. Fraudsters are known to play different mind games and if you are not careful enough, you can easily become the next victim. To protect yourself against scams, always be vigilant and alert to news relating to scams. If you suspect that you have become a victim, call the Police’s Anti-Deception Coordination Centre hotline 18222 for help. (Information source: Investor and Financial Education Council)