Apple's iPhone 8 will leave Touch ID fingerprint scanning behind, with 3D facial recognition taking its place, say sources.Speaking to Bloomberg, industry sources say that 3D face recongtion tech will be the main authentication tool in the iPhone 8, and that TouchID will not even feature.The potential move follows months of reports claiming that Apple has struggled to incorporate a fingerprint sensor in the smartphone's touchscreen, as a result of technical issues.The source adds that the iPhone 8 will feature a dedicated front-facing array combining a sensor and a laser emitter which will be used to map the face – this setup incorporates depth perception so that you can't fool the security clearance by holding up a photo of someone's face.It's said that this is more secure than fingerprint scanning, but although the technology development at Apple is reportedly in an advanced state, it's not 100% definite that it will replace the Touch ID scanner.The revelation comes very soon after a similar claim by reputable analyst Ming-chi Kuo of KGI Securities, who, in a note to investors, said:”We predict the OLED model (iPhone 8) won't support fingerprint recognition, reasons being: (1) the full-screen design doesn't work with existing capacitive fingerprint recognition, and (2) the scan-through ability of the under-display fingerprint solution still has technical challenges, including: (i) requirement for a more complex panel pixel design; (ii) disappointing scan-through of OLED panel despite it being thinner than LCD panel; and (iii) weakened scan-through performance due to overlayered panel module. As the new OLED iPhone won't support under-display fingerprint recognition, we now do not expect production ramp-up will be delayed again (we previously projected the ramp-up would be postponed to late October or later).”